[S] Change in flashrom[master]: writeprotect: Add some debug logging if wp_verify fails

[Anastasia Klimchuk (Code Review)]

Anastasia Klimchuk has submitted this change. ( https://review.coreboot.org/c/flashrom/+/67720 )

(

2 is the latest approved patch-set.
No files were changed between the latest approved patch-set and the submitted one.
 )Change subject: writeprotect: Add some debug logging if wp_verify fails
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writeprotect: Add some debug logging if wp_verify fails

Change-Id: I5fcaf767570418f90ae44826a1135d9b49653033
Signed-off-by: Evan Benn 
Reviewed-on: https://review.coreboot.org/c/flashrom/+/67720
Reviewed-by: Nikolai Artemiev 
Reviewed-by: Edward O'Callaghan 
Reviewed-by: Sergii Dmytruk 
Tested-by: build bot (Jenkins) 
---
M writeprotect.c
1 file changed, 23 insertions(+), 3 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Edward O'Callaghan: Looks good to me, approved
  Nikolai Artemiev: Looks good to me, but someone else must approve
  Sergii Dmytruk: Looks good to me, but someone else must approve

diff --git a/writeprotect.c b/writeprotect.c
index dcffe03..f72c362 100644
--- a/writeprotect.c
+++ b/writeprotect.c
@@ -155,6 +155,7 @@
    		return FLASHROM_WP_ERR_WRITE_FAILED;
    }

+	enum flashrom_wp_result ret = FLASHROM_WP_OK;
    /* Verify each register */
    for (enum flash_reg reg = STATUS1; reg < MAX_REGISTERS; reg++) {
    	if (!write_masks[reg])
@@ -164,14 +165,18 @@
    	if (wp_read_register(flash, reg, &value))
    		return FLASHROM_WP_ERR_READ_FAILED;

+		msg_cdbg2("%s: wp_verify reg:%u value:0x%x\n", __func__, reg, value);
    	uint8_t actual = value & write_masks[reg];
    	uint8_t expected = reg_values[reg] & write_masks[reg];

-		if (actual != expected)
-			return FLASHROM_WP_ERR_VERIFY_FAILED;
+		if (actual != expected) {
+			msg_cdbg("%s: wp_verify failed: reg:%u actual:0x%x expected:0x%x\n",
+				 __func__, reg, actual, expected);
+			ret = FLASHROM_WP_ERR_VERIFY_FAILED;
+		}
    }

-	return FLASHROM_WP_OK;
+	return ret;
 }

static decode_range_func_t *lookup_decode_range_func_ptr(const struct flashchip *chip)