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x86: check function status in EDD boot code 

Without checking the return value of get_edd_info() and adding the
entry only in the success case, 6 devices show up under
/sys/firmware/edd/, no matter how many devices are actually present.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Jan Beulich 2008-07-18 13:35:37 +01:00 committed by H. Peter Anvin
parent ffaa152efd
commit f2ba93929f
1 changed files with 2 additions and 3 deletions
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5
arch/x86/boot/edd.c
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@ -167,9 +167,8 @@ void query_edd(void)
* Scan the BIOS-supported hard disks and query EDD
* information...
*/
get_edd_info(devno, &ei);
if (boot_params.eddbuf_entries < EDDMAXNR) {
if (!get_edd_info(devno, &ei)
&& boot_params.eddbuf_entries < EDDMAXNR) {
memcpy(edp, &ei, sizeof ei);
edp++;
boot_params.eddbuf_entries++;