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[SCSI] zfcp: Fix fsf_status_read return code handling

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If allocation of a status buffer failed the function incorrectly
returned 0 instead of -ENOMEM.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Heiko Carstens 2008-05-19 12:17:39 +02:00 committed by James Bottomley
parent 9dfe1cc36b
commit b21417820f
1 changed files with 3 additions and 4 deletions
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7
drivers/s390/scsi/zfcp_fsf.c
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@ -712,7 +712,7 @@ zfcp_fsf_status_read(struct zfcp_adapter *adapter, int req_flags)
struct fsf_status_read_buffer *status_buffer; struct fsf_status_read_buffer *status_buffer;
unsigned long lock_flags; unsigned long lock_flags;
volatile struct qdio_buffer_element *sbale; volatile struct qdio_buffer_element *sbale;
int retval = 0; int retval;
/* setup new FSF request */ /* setup new FSF request */
retval = zfcp_fsf_req_create(adapter, FSF_QTCB_UNSOLICITED_STATUS, retval = zfcp_fsf_req_create(adapter, FSF_QTCB_UNSOLICITED_STATUS,
@ -731,12 +731,11 @@ zfcp_fsf_status_read(struct zfcp_adapter *adapter, int req_flags)
sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY; sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY;
fsf_req->sbale_curr = 2; fsf_req->sbale_curr = 2;
retval = -ENOMEM;
status_buffer = status_buffer =
mempool_alloc(adapter->pool.data_status_read, GFP_ATOMIC); mempool_alloc(adapter->pool.data_status_read, GFP_ATOMIC);
if (!status_buffer) { if (!status_buffer)
ZFCP_LOG_NORMAL("bug: could not get some buffer\n");
goto failed_buf; goto failed_buf;
}
memset(status_buffer, 0, sizeof (struct fsf_status_read_buffer)); memset(status_buffer, 0, sizeof (struct fsf_status_read_buffer));
fsf_req->data = (unsigned long) status_buffer; fsf_req->data = (unsigned long) status_buffer;