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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
This commit is contained in:
Dingchen Zhang 2019-06-10 09:47:51 -04:00 committed by Alex Deucher
parent c35a024f8e
commit 72a848f5c4
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/drm_debugfs_crc.c
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@ -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)