From: Markus Elfring elfring@users.sourceforge.net
[ 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 --- drivers/firmware/tegra/bpmp-debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/firmware/tegra/bpmp-debugfs.c b/drivers/firmware/tegra/bpmp-debugfs.c index bbcdd9fed3fb6..4221fed70ad48 100644 --- a/drivers/firmware/tegra/bpmp-debugfs.c +++ b/drivers/firmware/tegra/bpmp-debugfs.c @@ -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);