Since -Werror is enabled by default build fails with:
```
In function '__bswap_32',
inlined from 'do_rpmb_write_block' at mmc_cmds.c:2293:27:
/home/autobuild/autobuild/instance-15/output-1/host/aarch64-buildroot-linux-gnu/sysroot/usr/include/bits/byteswap.h:52:10: error: 'cnt' may be used uninitialized [-Werror=maybe-uninitialized]
52 | return __builtin_bswap32 (__bsx);
| ^~~~~~~~~~~~~~~~~~~~~~~~~
mmc_cmds.c: In function 'do_rpmb_write_block':
mmc_cmds.c:2270:22: note: 'cnt' was declared here
2270 | unsigned int cnt;
| ^~~
cc1: all warnings being treated as errors
```
So let's fix the warning by initializing cnt local variable.
Signed-off-by: Giulio Benetti <giulio.benetti@xxxxxxxxxxxxxxxxxxxxxx>
---
mmc_cmds.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mmc_cmds.c b/mmc_cmds.c
index 12b7802..777d649 100644
--- a/mmc_cmds.c
+++ b/mmc_cmds.c
@@ -2436,7 +2436,7 @@ int do_rpmb_write_block(int nargs, char **argv)
int ret, dev_fd, key_fd, data_fd;
unsigned char key[32];
uint16_t addr;
- unsigned int cnt;
+ unsigned int cnt = 0;
struct rpmb_frame frame_in = {
.req_resp = htobe16(MMC_RPMB_WRITE),
.block_count = htobe16(1)
--
2.34.1
