reader_mode_show is now called also from within the driver, on a buffer
allocated on the stack, so make sure it only uses a small buffer.
Signed-off-by: Matan Ziv-Av <matan@xxxxxxxxxxx>
---
drivers/platform/x86/lg-laptop.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/platform/x86/lg-laptop.c b/drivers/platform/x86/lg-laptop.c
index 78d3e3d2e51a..ab79457d5ffe 100644
--- a/drivers/platform/x86/lg-laptop.c
+++ b/drivers/platform/x86/lg-laptop.c
@@ -28,6 +28,8 @@ MODULE_DESCRIPTION("LG WMI Hotkey Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION("1.1");
+#define BUFFER_SIZE 16
+
#define WMI_EVENT_GUID0 "E4FB94F9-7F2B-4173-AD1A-CD1D95086248"
#define WMI_EVENT_GUID1 "023B133E-49D1-4E10-B313-698220140DC2"
#define WMI_EVENT_GUID2 "37BE1AC0-C3F2-4B1F-BFBE-8FDEAF2814D6"
@@ -406,7 +408,7 @@ static ssize_t reader_mode_show(struct device *dev,
kfree(r);
- return snprintf(buffer, PAGE_SIZE, "%d\n", status);
+ return snprintf(buffer, BUFFER_SIZE, "%d\n", status);
}
static ssize_t fn_lock_store(struct device *dev,
--
2.21.0
