ALSA: emu10k1: Rate-limit error messages about page errors

[ Upstream commit 11d42c81036324697d367600bfc16f6dd37636fd ]

The error messages at sanity checks of memory pages tend to repeat too
many times once when it hits, and without the rate limit, it may flood
and become unreadable.  Replace such messages with the *_ratelimited()
variant.

Bugzilla: http://bugzilla.opensuse.org/show_bug.cgi?id=1093027
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/sound/pci/emu10k1/memory.c b/sound/pci/emu10k1/memory.c
index 4f1f69b..8c778fa 100644 (file)
--- a/sound/pci/emu10k1/memory.c
+++ b/sound/pci/emu10k1/memory.c
@@ -237,13 +237,13 @@ __found_pages:
 static int is_valid_page(struct snd_emu10k1 *emu, dma_addr_t addr)
 {
        if (addr & ~emu->dma_mask) {
-               dev_err(emu->card->dev,
+               dev_err_ratelimited(emu->card->dev,
                        "max memory size is 0x%lx (addr = 0x%lx)!!\n",
                        emu->dma_mask, (unsigned long)addr);
                return 0;
        }
        if (addr & (EMUPAGESIZE-1)) {
-               dev_err(emu->card->dev, "page is not aligned\n");
+               dev_err_ratelimited(emu->card->dev, "page is not aligned\n");
                return 0;
        }
        return 1;
@@ -334,7 +334,7 @@ snd_emu10k1_alloc_pages(struct snd_emu10k1 *emu, struct snd_pcm_substream *subst
                else
                        addr = snd_pcm_sgbuf_get_addr(substream, ofs);
                if (! is_valid_page(emu, addr)) {
-                       dev_err(emu->card->dev,
+                       dev_err_ratelimited(emu->card->dev,
                                "emu: failure page = %d\n", idx);
                        mutex_unlock(&hdr->block_mutex);
                        return NULL;