kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

power/reset: xgene: Use mdelay instead of jiffies based timeout

Browse source 
jiffies are not running at this stage of system shutdown, meaning an
error in the reset function would never be reported. Replace with mdelay().

Cc: Loc Ho <lho@apm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2014-09-30 10:48:31 -07:00 committed by Sebastian Reichel
parent 43160718d9
commit 745e19764a
1 changed files with 2 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/power/reset/xgene-reboot.c
View file

@ -24,6 +24,7 @@
* For system shutdown, this is board specify. If a board designer
* implements GPIO shutdown, use the gpio-poweroff.c driver.
*/
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/of_device.h>
#include <linux/of_address.h>
@ -43,15 +44,12 @@ static struct xgene_reboot_context *xgene_restart_ctx;
static void xgene_restart(enum reboot_mode mode, const char *cmd)
{
struct xgene_reboot_context *ctx = xgene_restart_ctx;
unsigned long timeout;
/* Issue the reboot */
if (ctx)
writel(ctx->mask, ctx->csr);
timeout = jiffies + HZ;
while (time_before(jiffies, timeout))
cpu_relax();
mdelay(1000);
dev_emerg(ctx->dev, "Unable to restart system\n");
}