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UPSTREAM: firmware: tegra: Fix error application of sizeof() to pointer

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Application of sizeof() to pointer yields the number of bytes of the
pointer, but it should use the length of buffer in the code.

Bug: 254441685
Fixes: 06c2d9a078ab ("firmware: tegra: Reduce stack usage")
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
(cherry picked from commit 711e26c00e4c7b7cef0420c76a61e6d818e12687)
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: Ide1f9cbc31fea6fbb1d74f7ad4bbb6bef7caa0a9
This commit is contained in:
Lv Ruyi
2021-10-09 08:59:00 +00:00
committed by Lee Jones
parent 1b3cfadf63
commit 3815eca894
1 changed files with 3 additions and 2 deletions
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5
drivers/firmware/tegra/bpmp-debugfs.c
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@@ -77,13 +77,14 @@ static const char *get_filename(struct tegra_bpmp *bpmp,
const char *root_path, *filename = NULL;
char *root_path_buf;
size_t root_len;
size_t root_path_buf_len = 512;
root_path_buf = kzalloc(512, GFP_KERNEL);
root_path_buf = kzalloc(root_path_buf_len, GFP_KERNEL);
if (!root_path_buf)
goto out;
root_path = dentry_path(bpmp->debugfs_mirror, root_path_buf,
sizeof(root_path_buf));
root_path_buf_len);
if (IS_ERR(root_path))
goto out;