Commit 55d5ba55 authored by Li Zhong's avatar Li Zhong Committed by Damien Le Moal
Browse files

ata: libata-core: Check errors in sata_print_link_status() 



sata_scr_read() could return negative error code on failure. Check the
return value when reading the control register.

Signed-off-by: default avatarLi Zhong <floridsleeves@gmail.com>
Signed-off-by: default avatarDamien Le Moal <damien.lemoal@opensource.wdc.com>
parent 03070458

drivers/ata/libata-core.c

+2 −1
Original line number Diff line number Diff line
@@ -3021,7 +3021,8 @@ static void sata_print_link_status(struct ata_link *link) 


	if (sata_scr_read(link, SCR_STATUS, &sstatus))

		return;

	sata_scr_read(link, SCR_CONTROL, &scontrol);

	if (sata_scr_read(link, SCR_CONTROL, &scontrol))

		return;



	if (ata_phys_link_online(link)) {

		tmp = (sstatus >> 4) & 0xf;