iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/i915/gvt: Fix uninitialized variable in handle_mmio()

Browse Source 
[ Upstream commit 47caa96478b99d6d1199b89467cc3e5a6cc754ee ]

This code prints the wrong variable in the warning message.  It should
print "i" instead of "info->offset".  On the first iteration "info" is
uninitialized leading to a crash and on subsequent iterations it prints
the previous offset instead of the current one.

Fixes: e0f74ed4634d ("i915/gvt: Separate the MMIO tracking table from GVT-g")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/11957c20-b178-4027-9b0a-e32e9591dd7c@moroto.mountain
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter 2024-01-26 11:41:47 +03:00 committed by Greg Kroah-Hartman
parent 4a5e31bdd3
commit 41d5340cb0
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/i915/gvt/handlers.c
View File

@ -2850,8 +2850,7 @@ static int handle_mmio(struct intel_gvt_mmio_table_iter *iter, u32 offset,
for (i = start; i < end; i += 4) {
p = intel_gvt_find_mmio_info(gvt, i);
if (p) {
WARN(1, "dup mmio definition offset %x\n",
info->offset);
WARN(1, "dup mmio definition offset %x\n", i);
/* We return -EEXIST here to make GVT-g load fail.
* So duplicated MMIO can be found as soon as