From: Avadhut Naik <Avadhut.Naik@xxxxxxx>
The debugfs_create_blob() function has been used to create read-only binary
blobs in debugfs. The function filters out permissions, other than S_IRUSR,
S_IRGRP and S_IROTH, provided while creating the blobs.
The very behavior though is being changed through previous patch in the
series (fs: debugfs: Add write functionality to debugfs blobs) which makes
the binary blobs writable.
As such, rectify the permissions of panicinfo file to ensure it remains
read-only.
Signed-off-by: Avadhut Naik <Avadhut.Naik@xxxxxxx>
Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/platform/chrome/cros_ec_debugfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/platform/chrome/cros_ec_debugfs.c b/drivers/platform/chrome/cros_ec_debugfs.c
index c876120e0ebc..4428dcbd2a68 100644
--- a/drivers/platform/chrome/cros_ec_debugfs.c
+++ b/drivers/platform/chrome/cros_ec_debugfs.c
@@ -454,7 +454,7 @@ static int cros_ec_create_panicinfo(struct cros_ec_debugfs *debug_info)
debug_info->panicinfo_blob.data = data;
debug_info->panicinfo_blob.size = ret;
- debugfs_create_blob("panicinfo", S_IFREG | 0444, debug_info->dir,
+ debugfs_create_blob("panicinfo", 0444, debug_info->dir,
&debug_info->panicinfo_blob);
return 0;
--
2.34.1
