The patch titled
gpio: potential null dereference
has been removed from the -mm tree. Its filename was
gpio-potential-null-dereference.patch
This patch was dropped because it is obsolete
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: gpio: potential null dereference
From: Dan Carpenter <error27@xxxxxxxxx>
Smatch found a potential null dereference in gpio_setup_irq(). The
"pdesc" variable is allocated with idr_find() that can return NULL. If
gpio_setup_irq() is called with 0 as gpio_flags and "pdesc" is null, it
would OOPs here.
Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
Cc: David Brownell <david-b@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/gpio/gpiolib.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN drivers/gpio/gpiolib.c~gpio-potential-null-dereference drivers/gpio/gpiolib.c
--- a/drivers/gpio/gpiolib.c~gpio-potential-null-dereference
+++ a/drivers/gpio/gpiolib.c
@@ -416,7 +416,8 @@ static int gpio_setup_irq(struct gpio_de
return 0;
free_sd:
- sysfs_put(pdesc->value_sd);
+ if (pdesc)
+ sysfs_put(pdesc->value_sd);
free_id:
idr_remove(&pdesc_idr, id);
desc->flags &= GPIO_FLAGS_MASK;
_
Patches currently in -mm which might be from error27@xxxxxxxxx are
origin.patch
linux-next.patch
power_meter-acpi_device_class-power_meter_resource-too-long.patch
sbshc-acpi_device_class-smbus_host_controller-too-long.patch
acpi_pad-processor_aggregator-name-too-long.patch
drivers-gpu-drm-via-via_videoc-fix-off-by-one-issue.patch
drivers-gpu-drm-radeon-radeon_atombiosc-range-check-issues.patch
drivers-gpu-drm-drm_sysfsc-sysfs-files-error-handling.patch
drivers-gpu-drm-drm_memoryc-fix-check-for-end-of-loop.patch
drivers-media-video-au0828-au0828-videoc-off-by-one-bug.patch
drivers-media-video-zc0301-zc0301_corec-improve-error-handling.patch
drivers-media-video-et61x251-et61x251_corec-improve-error-handling.patch
drivers-media-video-sn9c102-sn9c102_corec-improve-error-handling.patch
cx88-improve-error-handling.patch
ir-keytable-avoid-double-lock.patch
cx231xx-improve-error-handling.patch
gpio-potential-null-dereference.patch
scsi-remove-superfluous-null-pointer-check-from-scsi_kill_request.patch
drivers-staging-otus-hal-hpanic-using-the-wrong-variable.patch
drivers-staging-comedi-drivers-dt2801c-off-by-one-issue.patch
usb-oxu210hp-release-spinlock-on-error-path.patch
mm-document-follow_page.patch
dynamic_debug-small-cleanup-in-ddebug_proc_write.patch
sis-strcpy-=-strlcpy.patch
proc-cleanup-remove-unused-assignments.patch
fs-sysv-dereferencing-err_ptr.patch
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