ata: libata-eh: fix sloppy result type of ata_internal_cmd_timeout()

ata_internal_cmd_timeout() returns *unsigned long* timeout in ms, however
ata_exec_internal_sg() passes that timeout to msecs_to_jiffies() that takes
just *unsigned int*.  Change ata_internal_cmd_timeout()'s result type to
*unsigned int* as well, also updating the *struct* ata_eh_cmd_timeout_ent
and the command timeout tables -- all timeouts fit into *unsigned int* but
we have to change ULONG_MAX to UINT_MAX...

Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>

drivers/ata/libata-eh.c

@@ -86,36 +86,36 @@ static const unsigned long ata_eh_reset_timeouts[] = {
 	ULONG_MAX, /* > 1 min has elapsed, give up */
 };
 
-static const unsigned long ata_eh_identify_timeouts[] = {
+static const unsigned int ata_eh_identify_timeouts[] = {
 	 5000,	/* covers > 99% of successes and not too boring on failures */
 	10000,  /* combined time till here is enough even for media access */
 	30000,	/* for true idiots */
-	ULONG_MAX,
+	UINT_MAX,
 };
 
-static const unsigned long ata_eh_revalidate_timeouts[] = {
+static const unsigned int ata_eh_revalidate_timeouts[] = {
 	15000,	/* Some drives are slow to read log pages when waking-up */
 	15000,  /* combined time till here is enough even for media access */
-	ULONG_MAX,
+	UINT_MAX,
 };
 
-static const unsigned long ata_eh_flush_timeouts[] = {
+static const unsigned int ata_eh_flush_timeouts[] = {
 	15000,	/* be generous with flush */
 	15000,  /* ditto */
 	30000,	/* and even more generous */
-	ULONG_MAX,
+	UINT_MAX,
 };
 
-static const unsigned long ata_eh_other_timeouts[] = {
+static const unsigned int ata_eh_other_timeouts[] = {
 	 5000,	/* same rationale as identify timeout */
 	10000,	/* ditto */
 	/* but no merciful 30sec for other commands, it just isn't worth it */
-	ULONG_MAX,
+	UINT_MAX,
 };
 
 struct ata_eh_cmd_timeout_ent {
 	const u8		*commands;
-	const unsigned long	*timeouts;
+	const unsigned int	*timeouts;
 };
 
 /* The following table determines timeouts to use for EH internal
@@ -326,7 +326,7 @@ static int ata_lookup_timeout_table(u8 cmd)
  *	RETURNS:
  *	Determined timeout.
  */
-unsigned long ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd)
+unsigned int ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd)
 {
 	struct ata_eh_context *ehc = &dev->link->eh_context;
 	int ent = ata_lookup_timeout_table(cmd);
@@ -361,7 +361,7 @@ void ata_internal_cmd_timed_out(struct ata_device *dev, u8 cmd)
 		return;
 
 	idx = ehc->cmd_timeout_idx[dev->devno][ent];
-	if (ata_eh_cmd_timeout_table[ent].timeouts[idx + 1] != ULONG_MAX)
+	if (ata_eh_cmd_timeout_table[ent].timeouts[idx + 1] != UINT_MAX)
 		ehc->cmd_timeout_idx[dev->devno][ent]++;
 }
 

drivers/ata/libata.h

@@ -132,7 +132,7 @@ int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev);
 int __ata_scsi_queuecmd(struct scsi_cmnd *scmd, struct ata_device *dev);
 
 /* libata-eh.c */
-extern unsigned long ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd);
+extern unsigned int ata_internal_cmd_timeout(struct ata_device *dev, u8 cmd);
 extern void ata_internal_cmd_timed_out(struct ata_device *dev, u8 cmd);
 extern void ata_eh_acquire(struct ata_port *ap);
 extern void ata_eh_release(struct ata_port *ap);