If the NULL test is necessary, the initialization involving a dereference of the tested value should be moved after the NULL test.
The sematic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ type T; expression E; identifier i,fld; statement S; @@ - T i = E->fld; + T i; ... when != E when != i if (E == NULL) S + i = E->fld; // </smpl> Signed-off-by: Julia Lawall <[email protected]> --- drivers/staging/tm6000/tm6000-alsa.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/tm6000/tm6000-alsa.c b/drivers/staging/tm6000/tm6000-alsa.c index 087137d..a06b3c6 100644 --- a/drivers/staging/tm6000/tm6000-alsa.c +++ b/drivers/staging/tm6000/tm6000-alsa.c @@ -426,11 +426,12 @@ error: static int tm6000_audio_fini(struct tm6000_core *dev) { - struct snd_tm6000_card *chip = dev->adev; + struct snd_tm6000_card *chip; if (!dev) return 0; + chip = dev->adev; if (!chip) return 0; _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
