On Tue, Apr 22, 2025 at 02:47:17PM +0100, Qasim Ijaz wrote:

debugfs.c emits the following warnings when compiling with the -Wsign-conversion flag with clang 15:

drivers/usb/typec/ucsi/debugfs.c:58:27: warning: implicit conversion changes signedness: 'int' to 'u32' (aka 'unsigned int') [-Wsign-conversion] ucsi->debugfs->status = ret; ~ ^~~ drivers/usb/typec/ucsi/debugfs.c:71:25: warning: implicit conversion changes signedness: 'u32' (aka 'unsigned int') to 'int' [-Wsign-conversion] return ucsi->debugfs->status; ~~~~~~ ~~~~~~~~~~~~~~~^~~~~~ During ucsi_cmd() we see:

if (ret < 0) { ucsi->debugfs->status = ret; return ret; } But "status" is u32 meaning unsigned wrap-around occurs when assigning a value which is < 0 to it, this obscures the real status.

To fix this make the "status" of type int since ret is also of type int.

Fixes: df0383ffad64 ("usb: typec: ucsi: Add debugfs for ucsi commands") Cc: stable@vger.kernel.org Signed-off-by: Qasim Ijaz qasdev00@gmail.com

Reviewed-by: Heikki Krogerus heikki.krogerus@linux.intel.com

---

drivers/usb/typec/ucsi/ucsi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h index 3a2c1762bec1..525d28160413 100644 --- a/drivers/usb/typec/ucsi/ucsi.h +++ b/drivers/usb/typec/ucsi/ucsi.h @@ -432,7 +432,7 @@ struct ucsi_debugfs_entry { u64 low; u64 high; } response;

• u32 status;

• int status; struct dentry *dentry;

}; -- 2.39.5