usb: gadget: s3c-hsotg: fix CodingStyle issues

checkpatch.pl has some valid complaints about style in s3c-hsotg.c:
- macro with 'if' should be really enclosed in 'do {} while (0)'
- seq_puts() is going to be slightly faster than seq_printf()
- pr_err() is shorter than printk(KERN_ERR ...)

Signed-off-by: Pavel Machek <pavel@denx.de>
[bzolnier: minor fixes]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 6bddf1a..24973d7 100644 (file)
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -2092,12 +2092,14 @@ static void kill_all_requests(struct s3c_hsotg *hsotg,
 }
 
 #define call_gadget(_hs, _entry) \
+do { \
        if ((_hs)->gadget.speed != USB_SPEED_UNKNOWN && \
            (_hs)->driver && (_hs)->driver->_entry) { \
                spin_unlock(&_hs->lock); \
                (_hs)->driver->_entry(&(_hs)->gadget); \
                spin_lock(&_hs->lock); \
-               }
+       } \
+} while (0)
 
 /**
  * s3c_hsotg_disconnect - disconnect service
@@ -2903,7 +2905,7 @@ static int s3c_hsotg_udc_start(struct usb_gadget *gadget,
        int ret;
 
        if (!hsotg) {
-               printk(KERN_ERR "%s: called with no device\n", __func__);
+               pr_err("%s: called with no device\n", __func__);
                return -ENODEV;
        }
 
@@ -3200,7 +3202,7 @@ static int state_show(struct seq_file *seq, void *v)
                   readl(regs + GNPTXSTS),
                   readl(regs + GRXSTSR));
 
-       seq_printf(seq, "\nEndpoint status:\n");
+       seq_puts(seq, "\nEndpoint status:\n");
 
        for (idx = 0; idx < 15; idx++) {
                u32 in, out;
@@ -3217,7 +3219,7 @@ static int state_show(struct seq_file *seq, void *v)
                seq_printf(seq, ", DIEPTSIZ=0x%08x, DOEPTSIZ=0x%08x",
                           in, out);
 
-               seq_printf(seq, "\n");
+               seq_puts(seq, "\n");
        }
 
        return 0;
@@ -3251,7 +3253,7 @@ static int fifo_show(struct seq_file *seq, void *v)
        u32 val;
        int idx;
 
-       seq_printf(seq, "Non-periodic FIFOs:\n");
+       seq_puts(seq, "Non-periodic FIFOs:\n");
        seq_printf(seq, "RXFIFO: Size %d\n", readl(regs + GRXFSIZ));
 
        val = readl(regs + GNPTXFSIZ);
@@ -3259,7 +3261,7 @@ static int fifo_show(struct seq_file *seq, void *v)
                   val >> GNPTXFSIZ_NPTxFDep_SHIFT,
                   val & GNPTXFSIZ_NPTxFStAddr_MASK);
 
-       seq_printf(seq, "\nPeriodic TXFIFOs:\n");
+       seq_puts(seq, "\nPeriodic TXFIFOs:\n");
 
        for (idx = 1; idx <= 15; idx++) {
                val = readl(regs + DPTXFSIZn(idx));
@@ -3330,7 +3332,7 @@ static int ep_show(struct seq_file *seq, void *v)
                   readl(regs + DIEPTSIZ(index)),
                   readl(regs + DOEPTSIZ(index)));
 
-       seq_printf(seq, "\n");
+       seq_puts(seq, "\n");
        seq_printf(seq, "mps %d\n", ep->ep.maxpacket);
        seq_printf(seq, "total_data=%ld\n", ep->total_data);
 
@@ -3341,7 +3343,7 @@ static int ep_show(struct seq_file *seq, void *v)
 
        list_for_each_entry(req, &ep->queue, queue) {
                if (--show_limit < 0) {
-                       seq_printf(seq, "not showing more requests...\n");
+                       seq_puts(seq, "not showing more requests...\n");
                        break;
                }