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Correct SEEPROM checksum calculation when multiple checksum attemps are made.

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Pointed out by:	"Jose M. Alcaide" <jose@we.lc.ehu.es>
This commit is contained in:
Justin T. Gibbs 1998-07-16 19:33:43 +00:00
parent 73375325b1
commit 47402bab91
1 changed files with 8 additions and 4 deletions
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12
sys/pci/aic7870.c
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@ -36,7 +36,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: aic7870.c,v 1.54 1997/11/18 14:14:34 bde Exp $
* $Id: aic7870.c,v 1.55 1998/07/06 18:38:57 gibbs Exp $
*/
#if defined(__FreeBSD__)
@ -676,7 +676,6 @@ load_seeprom(ahc, sxfrctl1)
struct seeprom_descriptor sd;
struct seeprom_config sc;
u_int16_t *scarray = (u_int16_t *)&sc;
u_int16_t checksum = 0;
u_int8_t scsi_conf;
u_int8_t host_id;
int have_seeprom;
@ -726,8 +725,13 @@ load_seeprom(ahc, sxfrctl1)
if (have_seeprom) {
/* Check checksum */
int i;
int maxaddr = (sizeof(sc)/2) - 1;
u_int16_t *scarray = (u_int16_t *)&sc;
int maxaddr;
u_int16_t *scarray;
u_int16_t checksum;
maxaddr = (sizeof(sc)/2) - 1;
checksum = 0;
scarray = (u_int16_t *)&sc;
for (i = 0; i < maxaddr; i++)
checksum = checksum + scarray[i];