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-rw-r--r--firmware/drivers/ata.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/firmware/drivers/ata.c b/firmware/drivers/ata.c
index b0c975e..5047447 100644
--- a/firmware/drivers/ata.c
+++ b/firmware/drivers/ata.c
@@ -765,10 +765,10 @@ static int check_registers(void)
ATA_OUT8(ATA_LCYL, TEST_PATTERN3);
ATA_OUT8(ATA_HCYL, TEST_PATTERN4);
- if ((ATA_IN8(ATA_NSECTOR) == TEST_PATTERN1) &&
- (ATA_IN8(ATA_SECTOR) == TEST_PATTERN2) &&
- (ATA_IN8(ATA_LCYL) == TEST_PATTERN3) &&
- (ATA_IN8(ATA_HCYL) == TEST_PATTERN4))
+ if (((ATA_IN8(ATA_NSECTOR) & 0xff) == TEST_PATTERN1) &&
+ ((ATA_IN8(ATA_SECTOR) & 0xff) == TEST_PATTERN2) &&
+ ((ATA_IN8(ATA_LCYL) & 0xff) == TEST_PATTERN3) &&
+ ((ATA_IN8(ATA_HCYL) & 0xff) == TEST_PATTERN4))
return 0;
sleep(1);