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-rw-r--r--drivers/block/paride/pf.c22
1 files changed, 16 insertions, 6 deletions
diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c
index 711d2f314ac..94af920465b 100644
--- a/drivers/block/paride/pf.c
+++ b/drivers/block/paride/pf.c
@@ -750,6 +750,14 @@ static int pf_ready(void)
static struct request_queue *pf_queue;
+static void pf_end_request(int uptodate)
+{
+ if (pf_req) {
+ end_request(pf_req, uptodate);
+ pf_req = NULL;
+ }
+}
+
static void do_pf_request(request_queue_t * q)
{
if (pf_busy)
@@ -765,7 +773,7 @@ repeat:
pf_count = pf_req->current_nr_sectors;
if (pf_block + pf_count > get_capacity(pf_req->rq_disk)) {
- end_request(pf_req, 0);
+ pf_end_request(0);
goto repeat;
}
@@ -780,7 +788,7 @@ repeat:
pi_do_claimed(pf_current->pi, do_pf_write);
else {
pf_busy = 0;
- end_request(pf_req, 0);
+ pf_end_request(0);
goto repeat;
}
}
@@ -798,9 +806,11 @@ static int pf_next_buf(void)
if (!pf_count)
return 1;
spin_lock_irqsave(&pf_spin_lock, saved_flags);
- end_request(pf_req, 1);
- pf_count = pf_req->current_nr_sectors;
- pf_buf = pf_req->buffer;
+ pf_end_request(1);
+ if (pf_req) {
+ pf_count = pf_req->current_nr_sectors;
+ pf_buf = pf_req->buffer;
+ }
spin_unlock_irqrestore(&pf_spin_lock, saved_flags);
return 1;
}
@@ -810,7 +820,7 @@ static inline void next_request(int success)
unsigned long saved_flags;
spin_lock_irqsave(&pf_spin_lock, saved_flags);
- end_request(pf_req, success);
+ pf_end_request(success);
pf_busy = 0;
do_pf_request(pf_queue);
spin_unlock_irqrestore(&pf_spin_lock, saved_flags);