Fix calculation of page_len in sff_8436_read_write function (#57)

vivekrnv · Aug 21, 2018 · c87ebef · c87ebef
1 parent 2991f0d
commit c87ebef
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diff --git a/patch/driver-support-sff-8436-read-write-fix.patch b/patch/driver-support-sff-8436-read-write-fix.patch
@@ -0,0 +1,15 @@
+Fix calculation of page_len in sff_8436_read_write function
+
+diff --git a/drivers/misc/eeprom/sff_8436_eeprom.c b/drivers/misc/eeprom/sff_8436_eeprom.c
+index 4688597..10074f0 100644
+--- a/drivers/misc/eeprom/sff_8436_eeprom.c
++++ b/drivers/misc/eeprom/sff_8436_eeprom.c
+@@ -689,7 +689,7 @@ static ssize_t sff_8436_read_write(struct sff_8436_data *sff_8436,
+ 			if (off + pending_len < page_start_offset + SFF_8436_PAGE_SIZE) {
+ 				page_len = pending_len;
+ 			} else {
+-				page_len = SFF_8436_PAGE_SIZE - off;
++				page_len = SFF_8436_PAGE_SIZE - (off - page_start_offset);
+ 			}
+ 		} else {
+ 			page_offset = page_start_offset;
diff --git a/patch/series b/patch/series
@@ -19,6 +19,7 @@ driver-support-sff-8436-eeprom.patch
 driver-support-sff-8436-eeprom-update.patch
 driver-sff-8436-use-nvmem-framework.patch
 driver-sff-8436-use-nvmem_device_read.patch
+driver-support-sff-8436-read-write-fix.patch
 driver-i2c-bus-intel-ismt-add-delay-param.patch
 driver-pca954x-i2c-mux-force-deselect-on-exit-flag.patch
 kernel-add-kexec-reboot-string.patch