The patch titled
drivers/gpu/drm/drm_sysfs.c: sysfs files error handling
has been added to the -mm tree. Its filename is
drivers-gpu-drm-drm_sysfsc-sysfs-files-error-handling.patch
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------------------------------------------------------
Subject: drivers/gpu/drm/drm_sysfs.c: sysfs files error handling
From: Dan Carpenter <error27@xxxxxxxxx>
In the original code we used "j" as an iterator but we used "i" as an
index.
- for (j = 0; j < i; j++)
- device_remove_file(&connector->kdev,
- &connector_attrs[i]);
Smatch complained about that because "i" was potentially passed the end of
the array. Which makes sense if we should be using "j" there.
I also thought that we should remove the files for &connector_attrs_opt1
but to do that I had to add separate iterators for &connector_attrs and
&connector_attrs_opt1.
Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_sysfs.c | 21 ++++++++++++---------
1 file changed, 12 insertions(+), 9 deletions(-)
diff -puN drivers/gpu/drm/drm_sysfs.c~drivers-gpu-drm-drm_sysfsc-sysfs-files-error-handling drivers/gpu/drm/drm_sysfs.c
--- a/drivers/gpu/drm/drm_sysfs.c~drivers-gpu-drm-drm_sysfsc-sysfs-files-error-handling
+++ a/drivers/gpu/drm/drm_sysfs.c
@@ -354,7 +354,10 @@ static struct bin_attribute edid_attr =
int drm_sysfs_connector_add(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
- int ret = 0, i, j;
+ int attr_cnt = 0;
+ int opt_cnt = 0;
+ int i;
+ int ret = 0;
/* We shouldn't get called more than once for the same connector */
BUG_ON(device_is_registered(&connector->kdev));
@@ -377,8 +380,8 @@ int drm_sysfs_connector_add(struct drm_c
/* Standard attributes */
- for (i = 0; i < ARRAY_SIZE(connector_attrs); i++) {
- ret = device_create_file(&connector->kdev, &connector_attrs[i]);
+ for (attr_cnt = 0; attr_cnt < ARRAY_SIZE(connector_attrs); attr_cnt++) {
+ ret = device_create_file(&connector->kdev, &connector_attrs[attr_cnt]);
if (ret)
goto err_out_files;
}
@@ -394,8 +397,8 @@ int drm_sysfs_connector_add(struct drm_c
case DRM_MODE_CONNECTOR_SVIDEO:
case DRM_MODE_CONNECTOR_Component:
case DRM_MODE_CONNECTOR_TV:
- for (i = 0; i < ARRAY_SIZE(connector_attrs_opt1); i++) {
- ret = device_create_file(&connector->kdev, &connector_attrs_opt1[i]);
+ for (opt_cnt = 0; opt_cnt < ARRAY_SIZE(connector_attrs_opt1); opt_cnt++) {
+ ret = device_create_file(&connector->kdev, &connector_attrs_opt1[opt_cnt]);
if (ret)
goto err_out_files;
}
@@ -414,10 +417,10 @@ int drm_sysfs_connector_add(struct drm_c
return 0;
err_out_files:
- if (i > 0)
- for (j = 0; j < i; j++)
- device_remove_file(&connector->kdev,
- &connector_attrs[i]);
+ for (i = 0; i < opt_cnt; i++)
+ device_remove_file(&connector->kdev, &connector_attrs_opt1[i]);
+ for (i = 0; i < attr_cnt; i++)
+ device_remove_file(&connector->kdev, &connector_attrs[i]);
device_unregister(&connector->kdev);
out:
_
Patches currently in -mm which might be from error27@xxxxxxxxx are
linux-next.patch
power_meter-acpi_device_class-power_meter_resource-too-long.patch
dpt_i20-several-use-after-free-issues.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
backlight-backlight_device_register-return-err_ptr.patch
scsi-remove-superfluous-null-pointer-check-from-scsi_kill_request.patch
iscsi-change-to.patch
drbd-potential-null-dereference.patch
musb-potential-use-after-free.patch
dynamic_debug-small-cleanup-in-ddebug_proc_write.patch
sis-strcpy-=-strlcpy.patch
proc-cleanup-remove-unused-assignments.patch
drivers-media-video-au0828-au0828-videoc-off-by-one-bug.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-mfd-pcf50633-corec-off-by-one-issue.patch
drivers-staging-otus-hal-hpanic-using-the-wrong-variable.patch
drivers-staging-comedi-drivers-dt2801c-off-by-one-issue.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
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