[flashrom] [PATCH] Continue verifying after first error

[Carl-Daniel Hailfinger]

Continue erase/write verification after the first error.
The first error is printed in detail and all subsequent errors are
listed in statistics. This allows users to check if there was just one
error or if the failure was widespread.

Signed-off-by: Carl-Daniel Hailfinger

Index: flashrom-verify_keep_going/flashrom.c
===================================================================
--- flashrom-verify_keep_going/flashrom.c	(Revision 659)
+++ flashrom-verify_keep_going/flashrom.c	(Arbeitskopie)
@@ -278,6 +278,7 @@
    int i, j, starthere, lenhere, ret = 0;
    int page_size = flash->page_size;
    uint8_t *readbuf = malloc(page_size);
+	int failcount = 0;

if (!len)
    	goto out_free;
@@ -318,15 +319,21 @@
    	flash->read(flash, readbuf, starthere, lenhere);
    	for (j = 0; j < lenhere; j++) {
    		if (cmpbuf[starthere - start + j] != readbuf[j]) {
-				fprintf(stderr, "%s FAILED at 0x%08x! "
-					"Expected=0x%02x, Read=0x%02x\n",
-					message, starthere + j,
-					cmpbuf[starthere - start + j], readbuf[j]);
-				ret = -1;
-				goto out_free;
+				/* Only print the first failure. */
+				if (!failcount++)
+					fprintf(stderr, "%s FAILED at 0x%08x! "
+						"Expected=0x%02x, Read=0x%02x,",
+						message, starthere + j,
+						cmpbuf[starthere - start + j],
+						readbuf[j]);
    		}
    	}
    }
+	if (failcount) {
+		fprintf(stderr, " failed byte count from 0x%08x-0x%08x: 0x%x\n",
+			start, start + len - 1, failcount);
+		ret = -1;
+	}

out_free:
    free(readbuf);