media: av7110: coding style fixes: miscellaneous

This patch fixes the following checkpatch warnings:

WARNING:OOM_MESSAGE: Possible unnecessary 'out of memory' message
CHECK:MACRO_ARG_REUSE: Macro argument reuse 'fe_func' - possible side-effects?

The MACRO_ARG_REUSE isn't really fixed but marked as intentional.
The comment is visible in the checkpatch warning.

Signed-off-by: Stefan Herdler <herdler@nurfuerspam.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
(cherry picked from commit 64b8402)
Stable-dep-of: 458ea1c ("media: av7110: fix a spectre vulnerability")
Signed-off-by: Wentao Guan <guanwentao@uniontech.com>

Author: Stefan Herdler

drivers/staging/media/av7110/av7110.c

@@ -108,7 +108,7 @@ static int av7110_num;
 		av7110_copy = fe_func; \
 		fe_func = av7110_func; \
 	} \
-}
+}    /* Macro argument reuse of 'fe_func' is intentional! */
 
 static void init_av7110_av(struct av7110 *av7110)
 {

drivers/staging/media/av7110/av7110_ipack.c

@@ -23,10 +23,8 @@ int av7110_ipack_init(struct ipack *p, int size,
 		      void (*func)(u8 *buf, int size, void *priv))
 {
 	p->buf = vmalloc(size);
-	if (!p->buf) {
-		printk(KERN_WARNING "Couldn't allocate memory for ipack\n");
+	if (!p->buf)
 		return -ENOMEM;
-	}
 	p->size = size;
 	p->func = func;
 	p->repack_subids = 0;