paride: fix off-by-one test

With `while (j++ < PX_SPIN)' j reaches PX_SPIN + 1 after the loop.  This
is probably unlikely to produce a problem.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c
index 8866ca3..71acf4e 100644 (file)
--- a/drivers/block/paride/pcd.c
+++ b/drivers/block/paride/pcd.c
@@ -341,11 +341,11 @@ static int pcd_wait(struct pcd_unit *cd, int go, int stop, char *fun, char *msg)
               && (j++ < PCD_SPIN))
                udelay(PCD_DELAY);
 
-       if ((r & (IDE_ERR & stop)) || (j >= PCD_SPIN)) {
+       if ((r & (IDE_ERR & stop)) || (j > PCD_SPIN)) {
                s = read_reg(cd, 7);
                e = read_reg(cd, 1);
                p = read_reg(cd, 2);
-               if (j >= PCD_SPIN)
+               if (j > PCD_SPIN)
                        e |= 0x100;
                if (fun)
                        printk("%s: %s %s: alt=0x%x stat=0x%x err=0x%x"

diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c
index ddb4f9a..c059aab 100644 (file)
--- a/drivers/block/paride/pf.c
+++ b/drivers/block/paride/pf.c
@@ -391,11 +391,11 @@ static int pf_wait(struct pf_unit *pf, int go, int stop, char *fun, char *msg)
               && (j++ < PF_SPIN))
                udelay(PF_SPIN_DEL);
 
-       if ((r & (STAT_ERR & stop)) || (j >= PF_SPIN)) {
+       if ((r & (STAT_ERR & stop)) || (j > PF_SPIN)) {
                s = read_reg(pf, 7);
                e = read_reg(pf, 1);
                p = read_reg(pf, 2);
-               if (j >= PF_SPIN)
+               if (j > PF_SPIN)
                        e |= 0x100;
                if (fun)
                        printk("%s: %s %s: alt=0x%x stat=0x%x err=0x%x"

diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c
index 1e4006e..bc5825f 100644 (file)
--- a/drivers/block/paride/pt.c
+++ b/drivers/block/paride/pt.c
@@ -274,11 +274,11 @@ static int pt_wait(struct pt_unit *tape, int go, int stop, char *fun, char *msg)
               && (j++ < PT_SPIN))
                udelay(PT_SPIN_DEL);
 
-       if ((r & (STAT_ERR & stop)) || (j >= PT_SPIN)) {
+       if ((r & (STAT_ERR & stop)) || (j > PT_SPIN)) {
                s = read_reg(pi, 7);
                e = read_reg(pi, 1);
                p = read_reg(pi, 2);
-               if (j >= PT_SPIN)
+               if (j > PT_SPIN)
                        e |= 0x100;
                if (fun)
                        printk("%s: %s %s: alt=0x%x stat=0x%x err=0x%x"