My laptop (Acer Travelmate 660) always cuts the power when rebooting
which causes the disk to emergency-park it's head.
Add a dmi check to stop disk as for shutdown on this laptop.
Signed-off-by: Bruno Prémont <bonbons@xxxxxxxxxxxxxxxxx>
---
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 3fcb64b..fdad8bc 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -50,6 +50,7 @@
#include <linux/string_helpers.h>
#include <linux/async.h>
#include <asm/uaccess.h>
+#include <linux/dmi.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
@@ -2127,6 +2128,20 @@ static int sd_start_stop_device(struct scsi_disk *sdkp, int start)
return res;
}
+static const struct dmi_system_id sd_coldreboot_table[] = {
+ {
+ /* Acer TravelMate 66x cuts power during reboot */
+ .ident = "Acer TravelMate 660",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
+ },
+ },
+
+ { } /* terminate list */
+};
+
+
/*
* Send a SYNCHRONIZE CACHE instruction down to the device through
* the normal SCSI command structure. Wait for the command to
@@ -2144,7 +2159,9 @@ static void sd_shutdown(struct device *dev)
sd_sync_cache(sdkp);
}
- if (system_state != SYSTEM_RESTART && sdkp->device->manage_start_stop) {
+ if (sdkp->device->manage_start_stop &&
+ (system_state != SYSTEM_RESTART ||
+ dmi_check_system(sd_coldreboot_table))) {
sd_printk(KERN_NOTICE, sdkp, "Stopping disk\n");
sd_start_stop_device(sdkp, 0);
}
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