diff options
| author | Dingchen Zhang <dingchen.zhang@amd.com> | 2019-06-10 16:47:51 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-01-07 23:29:40 +0300 |
| commit | 72a848f5c46bab4c921edc9cbffd1ab273b2be17 (patch) | |
| tree | 484f1b19bbe751a7855fe45ac9a3e385fd312c7a /drivers/gpu/drm/drm_debugfs_crc.c | |
| parent | c35a024f8eecc34c37ba73fa095e39dabfe5ee75 (diff) | |
| download | linux-72a848f5c46bab4c921edc9cbffd1ab273b2be17.tar.xz | |
drm: remove the newline for CRC source name.
userspace may transfer a newline, and this terminating newline
is replaced by a '\0' to avoid followup issues.
'len-1' is the index to replace the newline of CRC source name.
v3: typo fix (Sam)
v2: update patch subject, body and format. (Sam)
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Harry Wentland <Harry.Wentland@amd.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Dingchen Zhang <dingchen.zhang@amd.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190610134751.14356-1-dingchen.zhang@amd.com
Diffstat (limited to 'drivers/gpu/drm/drm_debugfs_crc.c')
| -rw-r--r-- | drivers/gpu/drm/drm_debugfs_crc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_debugfs_crc.c b/drivers/gpu/drm/drm_debugfs_crc.c index ca3c55c6b815..2ece2957da1a 100644 --- a/drivers/gpu/drm/drm_debugfs_crc.c +++ b/drivers/gpu/drm/drm_debugfs_crc.c @@ -140,8 +140,8 @@ static ssize_t crc_control_write(struct file *file, const char __user *ubuf, if (IS_ERR(source)) return PTR_ERR(source); - if (source[len] == '\n') - source[len] = '\0'; + if (source[len - 1] == '\n') + source[len - 1] = '\0'; ret = crtc->funcs->verify_crc_source(crtc, source, &values_cnt); if (ret) |