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firmware: tegra: bpmp: Return directly after a failed kzalloc() in get_filename()

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BugLink: https://bugs.launchpad.net/bugs/2065899

[ Upstream commit 1315848f1f8a0100cb6f8a7187bc320c5d98947f ]

The kfree() function was called in one case by
the get_filename() function during error handling
even if the passed variable contained a null pointer.
This issue was detected by using the Coccinelle software.

Thus return directly after a call of the function “kzalloc” failed
at the beginning.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Markus Elfring
2023-12-25 20:03:56 +01:00
committed by Stefan Bader
parent b46a49ddd6
commit 7f0df8125b
1 changed files with 1 additions and 1 deletions
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drivers/firmware/tegra/bpmp-debugfs.c
+1 -1
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@@ -77,7 +77,7 @@ static const char *get_filename(struct tegra_bpmp *bpmp,
root_path_buf = kzalloc(root_path_buf_len, GFP_KERNEL);
if (!root_path_buf)
goto out;
return NULL;
root_path = dentry_path(bpmp->debugfs_mirror, root_path_buf,
root_path_buf_len);