drivers/pcmcia/m32r_pcc.c: check return from add_pcc_socket

If request_irq() fails it passes the error to the caller. The caller
now checks it and jumps to the common error path on failure.

Link: http://lkml.kernel.org/r/[e-mail]
Signed-off-by: Sudip Mukherjee <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/pcmcia/m32r_pcc.c

···
 
 	pcc_sockets = 0;
 
-	add_pcc_socket(M32R_PCC0_BASE, PCC0_IRQ, M32R_PCC0_MAPBASE, 0x1000);
+	ret = add_pcc_socket(M32R_PCC0_BASE, PCC0_IRQ, M32R_PCC0_MAPBASE,
+			     0x1000);
+	if (ret)
+		goto unreg_dev;
 
 #ifdef CONFIG_M32RPCC_SLOT2
-	add_pcc_socket(M32R_PCC1_BASE, PCC1_IRQ, M32R_PCC1_MAPBASE, 0x2000);
+	ret = add_pcc_socket(M32R_PCC1_BASE, PCC1_IRQ, M32R_PCC1_MAPBASE,
+			     0x2000);
+	if (ret)
+		goto unreg_dev;
 #endif
 
 	if (pcc_sockets == 0) {