4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Himanshu Jha <himanshujha199640@xxxxxxxxx>
commit 6073a09210e06f39adabd682c282b3ee14c3d33d upstream.
Use kasprintf instead of combination of kmalloc and sprintf. Also,
remove the local variables used for storing the string length as they
are not required now.
Signed-off-by: Himanshu Jha <himanshujha199640@xxxxxxxxx>
Reviewed-by: Sinclair Yeh <syeh@xxxxxxxxxx>
Signed-off-by: Thomas Hellstrom <thellstrom@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/vmwgfx/vmwgfx_msg.c | 13 +++----------
1 file changed, 3 insertions(+), 10 deletions(-)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c
@@ -328,7 +328,7 @@ int vmw_host_get_guestinfo(const char *g
{
struct rpc_channel channel;
char *msg, *reply = NULL;
- size_t msg_len, reply_len = 0;
+ size_t reply_len = 0;
int ret = 0;
@@ -338,15 +338,12 @@ int vmw_host_get_guestinfo(const char *g
if (!guest_info_param || !length)
return -EINVAL;
- msg_len = strlen(guest_info_param) + strlen("info-get ") + 1;
- msg = kzalloc(msg_len, GFP_KERNEL);
+ msg = kasprintf(GFP_KERNEL, "info-get %s", guest_info_param);
if (!msg) {
DRM_ERROR("Cannot allocate memory to get %s", guest_info_param);
return -ENOMEM;
}
- sprintf(msg, "info-get %s", guest_info_param);
-
if (vmw_open_channel(&channel, RPCI_PROTOCOL_NUM) ||
vmw_send_msg(&channel, msg) ||
vmw_recv_msg(&channel, (void *) &reply, &reply_len) ||
@@ -388,7 +385,6 @@ int vmw_host_log(const char *log)
{
struct rpc_channel channel;
char *msg;
- int msg_len;
int ret = 0;
@@ -398,15 +394,12 @@ int vmw_host_log(const char *log)
if (!log)
return ret;
- msg_len = strlen(log) + strlen("log ") + 1;
- msg = kzalloc(msg_len, GFP_KERNEL);
+ msg = kasprintf(GFP_KERNEL, "log %s", log);
if (!msg) {
DRM_ERROR("Cannot allocate memory for log message\n");
return -ENOMEM;
}
- sprintf(msg, "log %s", log);
-
if (vmw_open_channel(&channel, RPCI_PROTOCOL_NUM) ||
vmw_send_msg(&channel, msg) ||
vmw_close_channel(&channel)) {
