From: Arend van Spriel <arend@xxxxxxxxxxxx>
The semaphore proto_sem has been replaced with mutex proto_block
which lock certain code paths for one thread.
Signed-off-by: Arend van Spriel <arend@xxxxxxxxxxxx>
Reviewed-by: Roland Vossen <rvossen@xxxxxxxxxxxx>
Reviewed-by: Franky Lin <frankyl@xxxxxxxxxxxx>
---
drivers/staging/brcm80211/brcmfmac/dhd_linux.c | 9 +++++----
1 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_linux.c b/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
index 6c8599c..310a96f 100644
--- a/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/staging/brcm80211/brcmfmac/dhd_linux.c
@@ -28,6 +28,7 @@
#include <linux/fcntl.h>
#include <linux/fs.h>
#include <linux/uaccess.h>
+#include <linux/mutex.h>
#include <net/cfg80211.h>
#include <defs.h>
#include <brcmu_utils.h>
@@ -73,7 +74,7 @@ struct brcmf_info {
/* OS/stack specifics */
struct brcmf_if *iflist[BRCMF_MAX_IFS];
- struct semaphore proto_sem;
+ struct mutex proto_block;
wait_queue_head_t ioctl_resp_wait;
/* Thread to issue ioctl for multicast */
@@ -1312,7 +1313,7 @@ struct brcmf_pub *brcmf_attach(struct brcmf_bus *bus, uint bus_hdrlen)
goto fail;
net->netdev_ops = NULL;
- sema_init(&drvr_priv->proto_sem, 1);
+ mutex_init(&drvr_priv->proto_block);
/* Initialize other structure content */
init_waitqueue_head(&drvr_priv->ioctl_resp_wait);
@@ -1582,7 +1583,7 @@ int brcmf_os_proto_block(struct brcmf_pub *drvr)
struct brcmf_info *drvr_priv = drvr->info;
if (drvr_priv) {
- down(&drvr_priv->proto_sem);
+ mutex_lock(&drvr_priv->proto_block);
return 1;
}
return 0;
@@ -1593,7 +1594,7 @@ int brcmf_os_proto_unblock(struct brcmf_pub *drvr)
struct brcmf_info *drvr_priv = drvr->info;
if (drvr_priv) {
- up(&drvr_priv->proto_sem);
+ mutex_unlock(&drvr_priv->proto_block);
return 1;
}
--
1.7.1
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