MFp4:

- Move tagged queueing control from ADA to ATA XPT. It allows to control
  device command queue length correctly. First step to support < 32 tags.
- Limit queue for non-tagged devices by 2 slots for ahci(4) and siis(4).
- Implement quirk matching for ATA devices.
- Move xpt_schedule_dev_sendq() from header to source file.
- Move delayed queue shrinking to the more expected place - element freeing.
- Remove some SCSIsms in ATA.

1 files changed, 5 insertions, 1 deletions

diff --git a/sys/cam/cam.c b/sys/cam/cam.c
index eff83a1ad13a..85b02fb9cfac 100644
--- a/sys/cam/cam.c
+++ b/sys/cam/cam.c
@@ -165,8 +165,12 @@ cam_strmatch(const u_int8_t *str, const u_int8_t *pattern, int str_len)
 		str++;
 		str_len--;
 	}
-	while (str_len > 0 && *str++ == ' ')
+	while (str_len > 0 && *str == ' ') {
+		str++;
 		str_len--;
+	}
+	if (str_len > 0 && *str == 0)
+		str_len = 0;
 
 	return (str_len);
 }