[PATCH] fwctl: pds: report device information length

[Avi Weiss]

pdsfc_info() allocates and populates struct fwctl_info_pds but leaves
the output length unset. Consequently, fwctl_cmd_info() copies no
PDS-specific data and reports a zero device_data_len even when userspace
provides an output buffer.

Set *length to sizeof(*info) before returning the structure.

Fixes: 4d09dd11d7d0 ("pds_fwctl: initial driver framework")
Signed-off-by: Avi Weiss <thnkslprpt@xxxxxxxxx>
---
 drivers/fwctl/pds/main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/fwctl/pds/main.c b/drivers/fwctl/pds/main.c
index 68fe254dd10ad..01abc7e83975f 100644
--- a/drivers/fwctl/pds/main.c
+++ b/drivers/fwctl/pds/main.c
@@ -63,6 +63,7 @@ static void *pdsfc_info(struct fwctl_uctx *uctx, size_t *length)
 		return ERR_PTR(-ENOMEM);
 
 	info->uctx_caps = pdsfc_uctx->uctx_caps;
+	*length = sizeof(*info);
 
 	return info;
 }

base-commit: cee9395acd8043be0644b25c34bfa86623f2b935
-- 
2.43.0