Backport changeset 5fa1247a2b56f33f88432c24e109deaf91ef8281

From: Mauro Carvalho Chehab <mchehab@infradead.org>

Original patch from  Al Viro <viro@ftp.linux.org.uk>
    Date:   Sat Mar 29 03:07:38 2008 +0000

    NULL noise: drivers/media

kernel-sync:

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

4 files changed, 7 insertions, 7 deletions

diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-ctrl.c b/linux/drivers/media/video/pvrusb2/pvrusb2-ctrl.c
index 32e43e9d1..8b500528d 100644
--- a/linux/drivers/media/video/pvrusb2/pvrusb2-ctrl.c
+++ b/linux/drivers/media/video/pvrusb2/pvrusb2-ctrl.c
@@ -68,7 +68,7 @@ int pvr2_ctrl_set_mask_value(struct pvr2_ctrl *cptr,int mask,int val)
 	int ret = 0;
 	if (!cptr) return -EINVAL;
 	LOCK_TAKE(cptr->hdw->big_lock); do {
-		if (cptr->info->set_value != 0) {
+		if (cptr->info->set_value) {
 			if (cptr->info->type == pvr2_ctl_bitmask) {
 				mask &= cptr->info->def.type_bitmask.valid_bits;
 			} else if ((cptr->info->type == pvr2_ctl_int)||
@@ -269,7 +269,7 @@ unsigned int pvr2_ctrl_get_v4lflags(struct pvr2_ctrl *cptr)
 int pvr2_ctrl_is_writable(struct pvr2_ctrl *cptr)
 {
 	if (!cptr) return 0;
-	return cptr->info->set_value != 0;
+	return cptr->info->set_value != NULL;
 }
 
 
diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index 77edc72a2..8356bc0e4 100644
--- a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -2357,7 +2357,7 @@ static int pvr2_hdw_commit_setup(struct pvr2_hdw *hdw)
 
 	for (idx = 0; idx < hdw->control_cnt; idx++) {
 		cptr = hdw->controls + idx;
-		if (cptr->info->is_dirty == 0) continue;
+		if (!cptr->info->is_dirty) continue;
 		if (!cptr->info->is_dirty(cptr)) continue;
 		commit_flag = !0;
 
@@ -2706,7 +2706,7 @@ void pvr2_hdw_cpufw_set_enabled(struct pvr2_hdw *hdw,
 	u16 address;
 	unsigned int pipe;
 	LOCK_TAKE(hdw->big_lock); do {
-		if ((hdw->fw_buffer == 0) == !enable_flag) break;
+		if ((hdw->fw_buffer == NULL) == !enable_flag) break;
 
 		if (!enable_flag) {
 			pvr2_trace(PVR2_TRACE_FIRMWARE,
@@ -2775,7 +2775,7 @@ void pvr2_hdw_cpufw_set_enabled(struct pvr2_hdw *hdw,
 /* Return true if we're in a mode for retrieval CPU firmware */
 int pvr2_hdw_cpufw_get_enabled(struct pvr2_hdw *hdw)
 {
-	return hdw->fw_buffer != 0;
+	return hdw->fw_buffer != NULL;
 }
 
 
diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-io.c b/linux/drivers/media/video/pvrusb2/pvrusb2-io.c
index 7b3be67f5..e4aae2c97 100644
--- a/linux/drivers/media/video/pvrusb2/pvrusb2-io.c
+++ b/linux/drivers/media/video/pvrusb2/pvrusb2-io.c
@@ -603,7 +603,7 @@ void pvr2_stream_kill(struct pvr2_stream *sp)
 	struct pvr2_buffer *bp;
 	mutex_lock(&sp->mutex); do {
 		pvr2_stream_internal_flush(sp);
-		while ((bp = pvr2_stream_get_ready_buffer(sp)) != 0) {
+		while ((bp = pvr2_stream_get_ready_buffer(sp)) != NULL) {
 			pvr2_buffer_set_idle(bp);
 		}
 		if (sp->buffer_total_count != sp->buffer_target_count) {
diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-ioread.c b/linux/drivers/media/video/pvrusb2/pvrusb2-ioread.c
index aef12fecb..d7bbbe00f 100644
--- a/linux/drivers/media/video/pvrusb2/pvrusb2-ioread.c
+++ b/linux/drivers/media/video/pvrusb2/pvrusb2-ioread.c
@@ -174,7 +174,7 @@ static int pvr2_ioread_start(struct pvr2_ioread *cp)
 	if (!(cp->stream)) return 0;
 	pvr2_trace(PVR2_TRACE_START_STOP,
 		   "/*---TRACE_READ---*/ pvr2_ioread_start id=%p",cp);
-	while ((bp = pvr2_stream_get_idle_buffer(cp->stream)) != 0) {
+	while ((bp = pvr2_stream_get_idle_buffer(cp->stream)) != NULL) {
 		stat = pvr2_buffer_queue(bp);
 		if (stat < 0) {
 			pvr2_trace(PVR2_TRACE_DATA_FLOW,