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sam_usbdevhs.c: fix compile warning

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chip/sam_usbdevhs.c:2474:11: warning: 'response' may be used uninitialized [-Wmaybe-uninitialized]
 2474 |           sam_ctrlep_write(ep0, response.b, nbytes);
      |           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
chip/sam_usbdevhs.c:1845:13: note: by argument 2 of type 'const uint8_t *' {aka 'const unsigned char *'} to 'sam_ctrlep_write' declared here
 1845 | static void sam_ctrlep_write(struct sam_ep_s *privep, const uint8_t *buffer,
      |             ^~~~~~~~~~~~~~~~
chip/sam_usbdevhs.c:2001:24: note: 'response' declared here
 2001 |   union wb_u           response;
      |                        ^~~~~~~~

Signed-off-by: Michal Lenc <michallenc@seznam.cz>
This commit is contained in:
Michal Lenc
2023-09-08 10:44:15 +02:00
committed by Petro Karashchenko
parent dd4055be78
commit 6d0151c8da
1 changed files with 7 additions and 0 deletions
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arch/arm/src/samv7/sam_usbdevhs.c
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@@ -2005,6 +2005,13 @@ static void sam_ep0_setup(struct sam_usbdev_s *priv)
int nbytes = 0; /* Assume zero-length packet */
int ret;
/* We want to pass pointer to response.b to sam_ctrlep_write function.
* Memset the union to avoid compilation warnings of uninitialized
* variable.
*/
memset(&response, 0, sizeof(union wb_u));
/* Terminate any pending requests */
sam_req_cancel(ep0, -EPROTO);