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open: swap free() calls for free_n()

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Swap calls to free() with calls to free_n() to leverage helper method
and handle clearing pointers after freeing in one step.

Signed-off-by: Patrick Venture <venture@google.com>
This commit is contained in:
Patrick Venture 2018-12-25 06:55:26 -08:00 committed by Alexander Amelkin
parent 51634fd77c
commit df076b9547
1 changed files with 7 additions and 28 deletions
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35
src/plugins/open/open.c
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@ -318,10 +318,7 @@ ipmi_openipmi_send_cmd(struct ipmi_intf *intf, struct ipmi_rq *req)
if (ioctl(intf->fd, IPMICTL_SEND_COMMAND, &_req) < 0) {
lperror(LOG_ERR, "Unable to send command");
if (data) {
free(data);
data = NULL;
}
free_n(&data);
return NULL;
}
@ -330,10 +327,7 @@ ipmi_openipmi_send_cmd(struct ipmi_intf *intf, struct ipmi_rq *req)
*/
if (intf->noanswer) {
if (data) {
free(data);
data = NULL;
}
free_n(&data);
return NULL;
}
@ -347,25 +341,16 @@ ipmi_openipmi_send_cmd(struct ipmi_intf *intf, struct ipmi_rq *req)
} while (retval < 0 && errno == EINTR);
if (retval < 0) {
lperror(LOG_ERR, "I/O Error");
if (data) {
free(data);
data = NULL;
}
free_n(&data);
return NULL;
} else if (retval == 0) {
lprintf(LOG_ERR, "No data available");
if (data) {
free(data);
data = NULL;
}
free_n(&data);
return NULL;
}
if (FD_ISSET(intf->fd, &rset) == 0) {
lprintf(LOG_ERR, "No data available");
if (data) {
free(data);
data = NULL;
}
free_n(&data);
return NULL;
}
@ -378,10 +363,7 @@ ipmi_openipmi_send_cmd(struct ipmi_intf *intf, struct ipmi_rq *req)
if (ioctl(intf->fd, IPMICTL_RECEIVE_MSG_TRUNC, &recv) < 0) {
lperror(LOG_ERR, "Error receiving message");
if (errno != EMSGSIZE) {
if (data) {
free(data);
data = NULL;
}
free_n(&data);
return NULL;
}
}
@ -453,10 +435,7 @@ ipmi_openipmi_send_cmd(struct ipmi_intf *intf, struct ipmi_rq *req)
rsp.data[rsp.data_len] = 0;
}
if (data) {
free(data);
data = NULL;
}
free_n(&data);
return &rsp;
}