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

BugLink: http://bugs.launchpad.net/bugs/1815234
[ 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>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

diff --git a/sound/pci/emu10k1/memory.c b/sound/pci/emu10k1/memory.c
index 4f1f69be18651b7c692f9feb812c239e8f911386..8c778fa33031733d9c30c1782c991101e50ed462 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;