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[libata] ata_piix: cleanup dmi strings checking

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	ATA: piix, fix pointer deref on suspend
fixed a possible oops in an ugly manner. Use newly introduced dmi_match()
to make the code pretty again.

Signed-off-by: Jiri Slaby <[email protected]>
Cc: Alexandru Romanescu <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: Alan Cox <[email protected]>
Signed-off-by: Jeff Garzik <[email protected]>
This commit is contained in:
Jiri Slaby 2008-12-10 14:07:22 +01:00 • committed by Jeff Garzik
commit 3c387730ef
1 changed files with 7 additions and 14 deletions
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21
drivers/ata/ata_piix.c
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@ -1072,20 +1072,13 @@ static int piix_broken_suspend(void)
* matching is necessary because dmi_system_id.matches is
* limited to four entries.
*/
if (dmi_get_system_info(DMI_SYS_VENDOR) &&
dmi_get_system_info(DMI_PRODUCT_NAME) &&
dmi_get_system_info(DMI_PRODUCT_VERSION) &&
dmi_get_system_info(DMI_PRODUCT_SERIAL) &&
dmi_get_system_info(DMI_BOARD_VENDOR) &&
dmi_get_system_info(DMI_BOARD_NAME) &&
dmi_get_system_info(DMI_BOARD_VERSION) &&
!strcmp(dmi_get_system_info(DMI_SYS_VENDOR), "TOSHIBA") &&
!strcmp(dmi_get_system_info(DMI_PRODUCT_NAME), "000000") &&
!strcmp(dmi_get_system_info(DMI_PRODUCT_VERSION), "000000") &&
!strcmp(dmi_get_system_info(DMI_PRODUCT_SERIAL), "000000") &&
!strcmp(dmi_get_system_info(DMI_BOARD_VENDOR), "TOSHIBA") &&
!strcmp(dmi_get_system_info(DMI_BOARD_NAME), "Portable PC") &&
!strcmp(dmi_get_system_info(DMI_BOARD_VERSION), "Version A0"))
if (dmi_match(DMI_SYS_VENDOR, "TOSHIBA") &&
dmi_match(DMI_PRODUCT_NAME, "000000") &&
dmi_match(DMI_PRODUCT_VERSION, "000000") &&
dmi_match(DMI_PRODUCT_SERIAL, "000000") &&
dmi_match(DMI_BOARD_VENDOR, "TOSHIBA") &&
dmi_match(DMI_BOARD_NAME, "Portable PC") &&
dmi_match(DMI_BOARD_VERSION, "Version A0"))
return 1;
return 0;