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scsi: esas2r: Replace semaphore fs_api_semaphore with mutex

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The semaphore 'fs_api_semaphore' is used as a simple mutex, so it should
be written as one. Semaphores are going away in the future.

Signed-off-by: Binoy Jayan <binoy.jayan@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Binoy Jayan 2017-06-08 15:37:31 +05:30 committed by Martin K. Petersen
parent 74d2fd488d
commit 249cf320bd
3 changed files with 5 additions and 5 deletions
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2
drivers/scsi/esas2r/esas2r.h
View File

@ -946,7 +946,7 @@ struct esas2r_adapter {
struct esas2r_mem_desc *vrq_mds;
int num_vrqs;
struct mutex fm_api_mutex;
struct semaphore fs_api_semaphore;
struct mutex fs_api_mutex;
struct semaphore nvram_semaphore;
struct atto_ioctl *local_atto_ioctl;
u8 fw_coredump_buff[ESAS2R_FWCOREDUMP_SZ];

2
drivers/scsi/esas2r/esas2r_init.c
View File

@ -328,7 +328,7 @@ int esas2r_init_adapter(struct Scsi_Host *host, struct pci_dev *pcid,
spin_lock_init(&a->request_lock);
spin_lock_init(&a->fw_event_lock);
mutex_init(&a->fm_api_mutex);
sema_init(&a->fs_api_semaphore, 1);
mutex_init(&a->fs_api_mutex);
sema_init(&a->nvram_semaphore, 1);
esas2r_fw_event_off(a);

6
drivers/scsi/esas2r/esas2r_ioctl.c
View File

@ -1962,7 +1962,7 @@ int esas2r_read_fs(struct esas2r_adapter *a, char *buf, long off, int count)
(struct esas2r_ioctl_fs *)a->fs_api_buffer;
/* If another flash request is already in progress, return. */
if (down_interruptible(&a->fs_api_semaphore)) {
if (mutex_lock_interruptible(&a->fs_api_mutex)) {
busy:
fs->status = ATTO_STS_OUT_OF_RSRC;
return -EBUSY;
@ -1978,7 +1978,7 @@ busy:
rq = esas2r_alloc_request(a);
if (rq == NULL) {
esas2r_debug("esas2r_read_fs: out of requests");
up(&a->fs_api_semaphore);
mutex_unlock(&a->fs_api_mutex);
goto busy;
}
@ -2006,7 +2006,7 @@ busy:
;
dont_wait:
/* Free the request and keep going */
up(&a->fs_api_semaphore);
mutex_unlock(&a->fs_api_mutex);
esas2r_free_request(a, (struct esas2r_request *)rq);
/* Pick up possible error code from above */