Staging: crystalhd: Fix different address spaces warning

This patch fixes following sparse warning in crystalhd_lnx.c
WARNING: incorrect type in argument
Signed-off-by: NMonam Agarwal <monamagarwal123@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/crystalhd/crystalhd_lnx.c

@@ -111,7 +111,7 @@ static void chd_dec_free_iodata(struct crystalhd_adp *adp,
 	spin_unlock_irqrestore(&adp->lock, flags);
 }
 
-static inline int crystalhd_user_data(unsigned long ud, void *dr,
+static inline int crystalhd_user_data(void __user *ud, void *dr,
 			 int size, int set)
 {
 	int rc;
@@ -122,9 +122,9 @@ static inline int crystalhd_user_data(unsigned long ud, void *dr,
 	}
 
 	if (set)
-		rc = copy_to_user((void *)ud, dr, size);
+		rc = copy_to_user(ud, dr, size);
 	else
-		rc = copy_from_user(dr, (void *)ud, size);
+		rc = copy_from_user(dr, ud, size);
 
 	if (rc) {
 		BCMLOG_ERR("Invalid args for command\n");
@@ -153,7 +153,7 @@ static int chd_dec_fetch_cdata(struct crystalhd_adp *adp,
 
 	io->add_cdata_sz = m_sz;
 	ua_off = ua + sizeof(io->udata);
-	rc = crystalhd_user_data(ua_off, io->add_cdata, io->add_cdata_sz, 0);
+	rc = crystalhd_user_data((void __user *)ua_off, io->add_cdata, io->add_cdata_sz, 0);
 	if (rc) {
 		BCMLOG_ERR("failed to pull add_cdata sz:%x ua_off:%x\n",
 			   io->add_cdata_sz, (unsigned int)ua_off);
@@ -178,7 +178,7 @@ static int chd_dec_release_cdata(struct crystalhd_adp *adp,
 
 	if (io->cmd != BCM_IOC_FW_DOWNLOAD) {
 		ua_off = ua + sizeof(io->udata);
-		rc = crystalhd_user_data(ua_off, io->add_cdata,
+		rc = crystalhd_user_data((void __user *)ua_off, io->add_cdata,
 					io->add_cdata_sz, 1);
 		if (rc) {
 			BCMLOG_ERR(
@@ -208,7 +208,7 @@ static int chd_dec_proc_user_data(struct crystalhd_adp *adp,
 		return -EINVAL;
 	}
 
-	rc = crystalhd_user_data(ua, &io->udata, sizeof(io->udata), set);
+	rc = crystalhd_user_data((void __user *)ua, &io->udata, sizeof(io->udata), set);
 	if (rc) {
 		BCMLOG_ERR("failed to %s iodata\n", (set ? "set" : "get"));
 		return rc;