at25: make input buffers of at25_*write() const

| drivers/misc/eeprom/at25.c:358: warning: assignment from incompatible pointer type

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index 6bc0dac5c1e8..b34cb5f79eea 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -140,7 +140,8 @@ at25_bin_read(struct kobject *kobj, struct bin_attribute *bin_attr,
 
 
 static ssize_t
-at25_ee_write(struct at25_data *at25, char *buf, loff_t off, size_t count)
+at25_ee_write(struct at25_data *at25, const char *buf, loff_t off,
+              size_t count)
 {
         ssize_t                 status = 0;
         unsigned                written = 0;
@@ -276,7 +277,7 @@ static ssize_t at25_mem_read(struct memory_accessor *mem, char *buf,
         return at25_ee_read(at25, buf, offset, count);
 }
 
-static ssize_t at25_mem_write(struct memory_accessor *mem, char *buf,
+static ssize_t at25_mem_write(struct memory_accessor *mem, const char *buf,
                           off_t offset, size_t count)
 {
         struct at25_data *at25 = container_of(mem, struct at25_data, mem);