diff options
| author | Krishna Manikandan <mkrishn@codeaurora.org> | 2016-12-28 16:43:04 +0530 |
|---|---|---|
| committer | Krishna Manikandan <mkrishn@codeaurora.org> | 2017-01-02 10:27:05 +0530 |
| commit | efd66e0283bc44048b4383fedb1859269de9f43e (patch) | |
| tree | 422123632a7657cf42df48aaf4f390179a0a566c /drivers/video/fbdev | |
| parent | cb31d17385da633cf71dbc9e192e7b30eeff8e35 (diff) | |
msm: mdss: Fix potential NULL pointer dereferences
Fixing potential NULL pointer dereferences in MDSS driver.
Change-Id: Ibaa6b8adec966737b41c36f530ae88a968d5d5ed
Signed-off-by: Krishna Chaitanya Devarakonda <kdevarak@codeaurora.org>
Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
Diffstat (limited to 'drivers/video/fbdev')
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_debug.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/video/fbdev/msm/mdss_debug.c b/drivers/video/fbdev/msm/mdss_debug.c index 9ab88d4a7a52..8d06edf01d1d 100644 --- a/drivers/video/fbdev/msm/mdss_debug.c +++ b/drivers/video/fbdev/msm/mdss_debug.c @@ -169,7 +169,8 @@ static ssize_t panel_debug_base_reg_write(struct file *file, break; } /* End of a hex value in given string */ - bufp[NEXT_VALUE_OFFSET - 1] = 0; + if ((bufp + NEXT_VALUE_OFFSET - 1) < (buf + count)) + bufp[NEXT_VALUE_OFFSET - 1] = 0; } if (len < PANEL_CMD_MIN_TX_COUNT) { pr_err("wrong input reg len\n"); |