[7/11] drivers/media: Correct NULL test
Commit Message
From: Julia Lawall <julia@diku.dk>
In each case, the NULL test has been performed already.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@r@
expression *x;
expression e;
identifier l;
@@
if (x == NULL || ...) {
... when forall
return ...; }
... when != goto l;
when != x = e
when != &x
*x == NULL
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
---
drivers/media/dvb/frontends/stv0900_core.c | 5 -----
drivers/media/video/cpia.c | 3 ---
2 files changed, 8 deletions(-)
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
@@ -1410,11 +1410,6 @@ static enum fe_stv0900_error stv0900_init_internal(struct dvb_frontend *fe,
return error;
}
- if (state->internal == NULL) {
- error = STV0900_INVALID_HANDLE;
- return error;
- }
-
intp = state->internal;
intp->demod_mode = p_init->demod_mode;
@@ -3737,9 +3737,6 @@ static int cpia_mmap(struct file *file, struct vm_area_struct *vma)
if (size > FRAME_NUM*CPIA_MAX_FRAME_SIZE)
return -EINVAL;
- if (!cam || !cam->ops)
- return -ENODEV;
-
/* make this _really_ smp-safe */
if (mutex_lock_interruptible(&cam->busy_lock))
return -EINTR;