From: Lu Guanqun <guanqun.lu@intel.com>
To: ALSA <alsa-devel@alsa-project.org>
Cc: Koul Vinod <vinod.koul@intel.com>,
Mark Brown <broonie@opensource.wolfsonmicro.com>,
Takashi Iwai <tiwai@suse.de>,
Harsha Priya <priya.harsha@intel.com>,
Liam Girdwood <lrg@slimlogic.co.uk>
Subject: [PATCH 4/4] sst: make register_sst_card more self-contained
Date: Wed, 06 Apr 2011 10:20:42 +0800 [thread overview]
Message-ID: <20110406022042.28406.78049.stgit@localhost> (raw)
In-Reply-To: <20110406022026.28406.98577.stgit@localhost>
From: Lu Guanqun <guanqun.lu@intel.com>
register_sst_card is used in ASoC code with field `scard_ops` being NULL.
Without this patch, there will be NULL dereference.
Signed-off-by: Lu Guanqun <guanqun.lu@intel.com>
---
.../staging/intel_sst/intel_sst_drv_interface.c | 1 -
drivers/staging/intel_sst/intelmid.c | 1 +
2 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/staging/intel_sst/intel_sst_drv_interface.c b/drivers/staging/intel_sst/intel_sst_drv_interface.c
index ea8e251..cf10dd6 100644
--- a/drivers/staging/intel_sst/intel_sst_drv_interface.c
+++ b/drivers/staging/intel_sst/intel_sst_drv_interface.c
@@ -508,7 +508,6 @@ int register_sst_card(struct intel_sst_card_ops *card)
sst_drv_ctx->pmic_state = SND_MAD_INIT_DONE;
sst_drv_ctx->rx_time_slot_status = 0; /*default AMIC*/
card->pcm_control = sst_pmic_ops.pcm_control;
- sst_drv_ctx->scard_ops->card_status = SND_CARD_UN_INIT;
return 0;
} else {
pr_err("strcmp fail %s\n", card->module_name);
diff --git a/drivers/staging/intel_sst/intelmid.c b/drivers/staging/intel_sst/intelmid.c
index fb22921..1fb39d4 100644
--- a/drivers/staging/intel_sst/intelmid.c
+++ b/drivers/staging/intel_sst/intelmid.c
@@ -802,6 +802,7 @@ static int __devinit snd_intelmad_sst_register(
pr_err("sst card registration failed\n");
return ret_val;
}
+ sst_drv_ctx->scard_ops->card_status = SND_CARD_UN_INIT;
sst_card_vendor_id = intelmaddata->sstdrv_ops->vendor_id;
intelmaddata->pmic_status = PMIC_UNINIT;
next prev parent reply other threads:[~2011-04-06 2:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-06 2:20 [PATCH 1/4] ASoC: sst_platform: initialize module_name properly Lu Guanqun
2011-04-06 2:20 ` [PATCH 2/4] ASoC: sst_platform: free the resources on fail path Lu Guanqun
2011-04-06 2:20 ` [PATCH 3/4] ASoC: sst_platform: unregister sst card when being closed Lu Guanqun
2011-04-06 2:20 ` Lu Guanqun [this message]
2011-04-06 14:16 ` [PATCH 1/4] ASoC: sst_platform: initialize module_name properly Mark Brown
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