The patch titled drivers/misc: elide a non-zero test on a result that is never 0 has been removed from the -mm tree. Its filename was drivers-misc-elide-a-non-zero-test-on-a-result-that-is-never-0.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: drivers/misc: elide a non-zero test on a result that is never 0 From: Julia Lawall <julia@xxxxxxx> The function thermal_cooling_device_register always returns either a valid pointer or a value made with ERR_PTR, so a test for non-zero on the result will always succeed. The problem was found using the following semantic match. (http://www.emn.fr/x-info/coccinelle/) //<smpl> @a@ expression E, E1; statement S,S1; position p; @@ E = thermal_cooling_device_register(...) ... when != E = E1 if@p (E) S else S1 @n@ position a.p; expression E,E1; statement S,S1; @@ E = NULL ... when != E = E1 if@p (E) S else S1 @depends on !n@ expression E; statement S,S1; position a.p; @@ * if@p (E) S else S1 //</smpl> Signed-off-by: Julia Lawall <julia@xxxxxxx> Cc: Thomas Sujith <sujith.thomas@xxxxxxxxx> Cc: Len Brown <len.brown@xxxxxxxxx> Cc: Zhang Rui <rui.zhang@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/misc/intel_menlow.c | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) diff -puN drivers/misc/intel_menlow.c~drivers-misc-elide-a-non-zero-test-on-a-result-that-is-never-0 drivers/misc/intel_menlow.c --- a/drivers/misc/intel_menlow.c~drivers-misc-elide-a-non-zero-test-on-a-result-that-is-never-0 +++ a/drivers/misc/intel_menlow.c @@ -175,19 +175,17 @@ static int intel_menlow_memory_add(struc goto end; } - if (cdev) { - acpi_driver_data(device) = cdev; - result = sysfs_create_link(&device->dev.kobj, - &cdev->device.kobj, "thermal_cooling"); - if (result) - goto unregister; - - result = sysfs_create_link(&cdev->device.kobj, - &device->dev.kobj, "device"); - if (result) { - sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); - goto unregister; - } + acpi_driver_data(device) = cdev; + result = sysfs_create_link(&device->dev.kobj, + &cdev->device.kobj, "thermal_cooling"); + if (result) + goto unregister; + + result = sysfs_create_link(&cdev->device.kobj, + &device->dev.kobj, "device"); + if (result) { + sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); + goto unregister; } end: _ Patches currently in -mm which might be from julia@xxxxxxx are origin.patch git-acpi.patch drivers-scsi-use-time_before-time_before_eq-etc.patch git-cryptodev.patch fs-ext4-use-bug_on.patch drivers-char-ds1286c-use-time_before-time_before_eq-etc.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html