kernel/git/stable/linux.git/drivers/serial/ioc3_serial.c, branch master

tty: move drivers/serial/ to drivers/tty/serial/

2011-01-13T20:10:18+00:00

The serial drivers are really just tty drivers, so move them to drivers/tty/ to make things a bit neater overall. This is part of the tty/serial driver movement proceedure as proposed by Arnd Bergmann and approved by everyone involved a number of months ago. Cc: Arnd Bergmann Cc: Alan Cox Cc: Geert Uytterhoeven Cc: Rogier Wolff Cc: Michael H. Warfield Signed-off-by: Greg Kroah-Hartman

Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

2010-10-21T21:27:18+00:00

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Cannot use register_percpu_irq() from ia64_mca_init() [IA64] Initialize interrupts later (from init_IRQ()) [IA64] enable ARCH_DMA_ADDR_T_64BIT [IA64] ioc3_serial: release resources in error return path [IA64] Stop using the deprecated __do_IRQ() code path [IA64] Remove unnecessary casts of private_data in perfmon.c [IA64] Fix missing iounmap in error path in cyclone.c [IA64] salinfo: sema_init instead of init_MUTEX [IA64] xen: use ARRAY_SIZE macro in xen_pv_ops.c [IA64] Use static const char * const in palinfo.c [IA64] remove asm/compat.h [IA64] Add CONFIG_STACKTRACE_SUPPORT [IA64] Move local_softirq_pending() definition [IA64] iommu: Add a dummy iommu_table.h file in IA64. [IA64] unwind - optimise linked-list searches for modules [IA64] unwind: remove preprocesser noise, and correct comment

SERIAL: ioc3_serial: Return -ENOMEM on memory allocation failure

2010-10-19T17:32:40+00:00

In this code, 0 is returned on memory allocation failure, even though other failures return -ENOMEM or other similar values. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @@ expression ret; expression x,e1,e2,e3; @@ ret = 0 ... when != ret = e1 *x = \(kmalloc\|kcalloc\|kzalloc\)(...) ... when != ret = e2 if (x == NULL) { ... when != ret = e3 return ret; } // Signed-off-by: Julia Lawall To: Pat Gefre Cc: kernel-janitors@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1704/ Signed-off-by: Ralf Baechle

[IA64] ioc3_serial: release resources in error return path

2010-10-01T20:32:45+00:00

In ioc3uart_probe() resources were not released during error return path - ports[phys_port] Signed-off-by: Rahul Ruikar Signed-off-by: Tony Luck

tty: serial - fix tty back references in termios

2010-08-10T20:47:41+00:00

One or two drivers go poking back into the tty from the termios setting routine in unsafe ways. We don't need to pass the tty down because the [ab]users are just using it to get at things they can get at anyway. This leaves low_latency setting to sort out along with set_ldisc use. Signed-off-by: Alan Cox Cc: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30T13:02:32+00:00

percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo Guess-its-ok-by: Christoph Lameter Cc: Ingo Molnar Cc: Lee Schermerhorn

tty: Fix up char drivers request_room usage

2010-03-02T22:43:22+00:00

We can't change them all but quite a few misuse it. Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

ioc3/ioc4: various section fixes

2009-12-15T16:53:27+00:00

Several IOC3 and IOC4 drivers misuse the __devinit and __devexit section markers. Use __init and __exit instead as appropriate, then add __devinit and __devexit where they really belong for PCI drivers. Also make ioc4_serial_init static. Signed-off-by: Jean Delvare Cc: Pat Gefre Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

serial: move delta_msr_wait into the tty_port

2009-09-19T20:13:31+00:00

This is used by various drivers not just serial and can be extracted as commonality Signed-off-by: Alan Cox

serial: kill off uart_info

2009-09-19T20:13:28+00:00

We moved this into uart_state, now move the fields out of the separate structure and kill it off. Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman