The set_dfu_alt_info() function calls the ALLOC_CACHE_ALIGN_BUFFER()
macro to declare a `buf' variable pointer into an array allocated on the
stack. It then calls the memset() function to clear the useable portion
of the array using the idiomatic expression `sizeof(buf)'.
While this would indeed work fine for an array, in the present case we
end up clearing only the size of a pointer.
Fix this by specifying the explicit size `DFU_ALT_BUF_LEN' instead.
Fixes: ec2933e543df ("board: stm32mp1: move set_dfu_alt_info in st common
directory")
Signed-off-by: Vincent Stehlé <vincent.ste...@arm.com>
Cc: Patrick Delaunay <patrick.delau...@foss.st.com>
Cc: Patrice Chotard <patrice.chot...@foss.st.com>
Cc: Tom Rini <tr...@konsulko.com>
Cc: Marek Vasut <ma...@denx.de>
---
board/st/common/stm32mp_dfu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/board/st/common/stm32mp_dfu.c b/board/st/common/stm32mp_dfu.c
index 1db8e45480e..8c1f80b678a 100644
--- a/board/st/common/stm32mp_dfu.c
+++ b/board/st/common/stm32mp_dfu.c
@@ -105,7 +105,7 @@ void set_dfu_alt_info(char *interface, char *devstr)
if (env_get("dfu_alt_info"))
return;
- memset(buf, 0, sizeof(buf));
+ memset(buf, 0, DFU_ALT_BUF_LEN);
snprintf(buf, DFU_ALT_BUF_LEN,
"ram 0=%s", CONFIG_DFU_ALT_RAM0);
--
2.47.2
