commit: e4459e1682c107d7ee1bf102c1ba534230e9b50b From: Alexey Khoroshilov <[email protected]> Date: Thu, 5 Apr 2012 18:53:20 -0300 Subject: [media] drxk: Does not unlock mutex if sanity check failed in scu_command()
If sanity check fails in scu_command(), goto error leads to unlock of an unheld mutex. The check should not fail in reality, but it nevertheless worth fixing. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <[email protected]> Cc: [email protected] Signed-off-by: Mauro Carvalho Chehab <[email protected]> --- drivers/media/dvb/frontends/drxk_hard.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/media/dvb/frontends/drxk_hard.c b/drivers/media/dvb/frontends/drxk_hard.c index 36d1175..a414b1f 100644 --- a/drivers/media/dvb/frontends/drxk_hard.c +++ b/drivers/media/dvb/frontends/drxk_hard.c @@ -1520,8 +1520,10 @@ static int scu_command(struct drxk_state *state, dprintk(1, "\n"); if ((cmd == 0) || ((parameterLen > 0) && (parameter == NULL)) || - ((resultLen > 0) && (result == NULL))) - goto error; + ((resultLen > 0) && (result == NULL))) { + printk(KERN_ERR "drxk: Error %d on %s\n", status, __func__); + return status; + } mutex_lock(&state->mutex); -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
