libata: use ULONG_MAX to terminate reset timeout table

This doesn't introduce any functional changes.  This is to make reset
timeout table consistent with to-be-added command timeout tables.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 5b5ae631ed03..83d1451fa714 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -90,7 +90,7 @@ static const unsigned long ata_eh_reset_timeouts[] = {
         10000,  /* > 99% working drives spin up before 20sec */
         35000,  /* give > 30 secs of idleness for retarded devices */
          5000,  /* and sweet one last chance */
-        /* > 1 min has elapsed, give up */
+        ULONG_MAX, /* > 1 min has elapsed, give up */
 };
 
 static void __ata_port_freeze(struct ata_port *ap);
@@ -2077,13 +2077,12 @@ int ata_eh_reset(struct ata_link *link, int classify,
                  ata_prereset_fn_t prereset, ata_reset_fn_t softreset,
                  ata_reset_fn_t hardreset, ata_postreset_fn_t postreset)
 {
-        const int max_tries = ARRAY_SIZE(ata_eh_reset_timeouts);
         struct ata_port *ap = link->ap;
         struct ata_eh_context *ehc = &link->eh_context;
         unsigned int *classes = ehc->classes;
         unsigned int lflags = link->flags;
         int verbose = !(ehc->i.flags & ATA_EHI_QUIET);
-        int try = 0;
+        int max_tries = 0, try = 0;
         struct ata_device *dev;
         unsigned long deadline, now;
         ata_reset_fn_t reset;
@@ -2094,6 +2093,9 @@ int ata_eh_reset(struct ata_link *link, int classify,
         /*
          * Prepare to reset
          */
+        while (ata_eh_reset_timeouts[max_tries] != ULONG_MAX)
+                max_tries++;
+
         now = jiffies;
         deadline = ata_deadline(ehc->last_reset, ATA_EH_RESET_COOL_DOWN);
         if (time_before(now, deadline))