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-rw-r--r--drivers/auxdisplay/charlcd.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/auxdisplay/charlcd.c b/drivers/auxdisplay/charlcd.c
index 0246ff77e772..674ffbae1c65 100644
--- a/drivers/auxdisplay/charlcd.c
+++ b/drivers/auxdisplay/charlcd.c
@@ -443,9 +443,9 @@ static inline int handle_lcd_special_code(struct charlcd *lcd)
shift ^= 4;
if (*esc >= '0' && *esc <= '9') {
value |= (*esc - '0') << shift;
- } else if (*esc >= 'A' && *esc <= 'Z') {
+ } else if (*esc >= 'A' && *esc <= 'F') {
value |= (*esc - 'A' + 10) << shift;
- } else if (*esc >= 'a' && *esc <= 'z') {
+ } else if (*esc >= 'a' && *esc <= 'f') {
value |= (*esc - 'a' + 10) << shift;
} else {
esc++;