kernel/git/stable/linux-stable.git/drivers/hwmon, branch linux-2.6.39.y

hwmon: (max1111) Fix race condition causing NULL pointer exception

2011-08-03T19:42:41+00:00

commit d3f684f2820a7f42acef68bea6622d9032127fb2 upstream. spi_sync call uses its spi_message parameter to keep completion information, using a drvdata structure is not thread-safe. Use a mutex to prevent multiple access to shared driver data. Signed-off-by: Pavel Herrmann Acked-by: Russell King Acked-by: Pavel Machek Acked-by: Marek Vasut Acked-by: Cyril Hrubis Tested-by: Stanislav Brabec Signed-off-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman

hwmon: (asus_atk0110) Fix memory leak

2011-08-03T19:42:41+00:00

commit 0b8e77f12cb6bfe2e5a67f2cdc8c7af23abc4ccf upstream. The object returned by atk_gitm is dynamically allocated and must be freed. Signed-off-by: Luca Tettamanti Signed-off-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman

hwmon: (it87) Fix label group removal

2011-08-03T19:42:40+00:00

commit fa8b69758e65b406c8010936b541cd00deef804d upstream. A copy-and-paste error caused it87_attributes_vid to be referenced where it87_attributes_label should be. Thankfully the group is only used for attribute removal, not attribute creation, so the effects of this bug are limited, but let's fix it still. Signed-off-by: Jean Delvare Acked-by: Guenter Roeck Signed-off-by: Greg Kroah-Hartman

hwmon: (pmbus) Improve auto-detection of temperature status register

2011-08-03T19:42:30+00:00

commit 22e6b2312d221376dcd98a8afb0f314b62d33a91 upstream. It is possible that a PMBus device supports the READ_TEMPERATURE2 and/or READ_TEMPERATURE3 registers but does not support READ_TEMPERATURE1. Improve temperature status register detection to address this condition. Reported-by: Jean Delvare Signed-off-by: Guenter Roeck Acked-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman

hwmon: (pmbus) Use long variables for register to data conversions

2011-08-03T19:42:25+00:00

commit f450c1504d3ff6aace3927c805bdea0ac0669efd upstream. Using integer variable types for register to data conversions can cause overflows especially for power calculations, which are in microwatt. Use long variables instead. Signed-off-by: Guenter Roeck Acked-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman

hwmon: (pmbus) Improve fan detection

2011-08-03T19:42:25+00:00

commit 81ae68142a0483b3791cba99eab268859858f508 upstream. Some PMBus devices return no error when reading fan speed registers, but don't really support fans. Strengthen fan detection by also checking if fan configuration registers exist. Signed-off-by: Guenter Roeck Reviewed-by: Robert Coulson Signed-off-by: Greg Kroah-Hartman

hwmon: (pmbus) Drop check for PMBus revision register in probe function

2011-08-03T19:42:25+00:00

commit 7f2c0662e5cfd05f12ca49109e8f787bf2d87b66 upstream. Some PMBus devices do not support the PMBus revision register, so don't check if it exists. Signed-off-by: Guenter Roeck Reviewed-by: Robert Coulson Signed-off-by: Greg Kroah-Hartman

hwmon: (pmbus) Auto-detect temp2 and temp3 registers/attributes

2011-08-03T19:42:24+00:00

commit 0e502ec889d33bfcb348e420d7e105bc61c45eb4 upstream. Additional temperature attribute support is easy to detect, so do it. Signed-off-by: Guenter Roeck Reviewed-by: Robert Coulson Signed-off-by: Greg Kroah-Hartman

hwmon: (lm95241) Fix negative temperature results

2011-08-03T19:42:24+00:00

commit 0c2a40e2fe4f4af0410f57e84b95b817ec15aa70 upstream. Negative temperatures were returned in degrees C instead of milli-Degrees C. Also, negative temperatures were reported for remote temperature sensors even if the chip was configured for positive-only results. Fix by detecting temperature modes, and by treating negative temperatures similar to positive temperatures, with appropriate sign extension. Signed-off-by: Guenter Roeck Acked-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman

hwmon: (lm95241) Fix chip detection code

2011-08-03T19:42:24+00:00

commit 27739e694a3c34b5e371575d74e500d60111c689 upstream. The LM95241 driver accepts every chip ID equal to or larger than 0xA4 as its own, and other chips such as LM95245 use chip IDs in the accepted ID range. This results in false chip detection. Fix problem by accepting only the known LM95241 chip ID. Signed-off-by: Guenter Roeck Acked-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman