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authorAmitkumar Karwar <akarwar@marvell.com>2013-11-14 19:10:41 -0800
committerJohn W. Linville <linville@tuxdriver.com>2013-11-15 14:29:32 -0500
commit3c59e328eb4ff23781bfa4cfc9f6f496003bf8b9 (patch)
tree11c69a91582c9eed44c5cb583bf65ab8dc052e57
parent98a4635bba7050afdbdce428cc44a0471779ffc5 (diff)
mwifiex: fix memory leak issue for sdio and pcie cards
When driver is failed to load, card pointer doesn't get freed. We will free it in cleanup handler which is called in failure as well as unload path. Also, update drvdata in init/cleanup handlers instead of register/unregister handlers. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/mwifiex/pcie.c2
-rw-r--r--drivers/net/wireless/mwifiex/sdio.c7
2 files changed, 5 insertions, 4 deletions
diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c
index 33fa9432b24..03688aa14e8 100644
--- a/drivers/net/wireless/mwifiex/pcie.c
+++ b/drivers/net/wireless/mwifiex/pcie.c
@@ -232,7 +232,6 @@ static void mwifiex_pcie_remove(struct pci_dev *pdev)
}
mwifiex_remove_card(card->adapter, &add_remove_card_sem);
- kfree(card);
}
static void mwifiex_pcie_shutdown(struct pci_dev *pdev)
@@ -2313,6 +2312,7 @@ static void mwifiex_pcie_cleanup(struct mwifiex_adapter *adapter)
pci_release_region(pdev, 0);
pci_set_drvdata(pdev, NULL);
}
+ kfree(card);
}
/*
diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
index 9bf8898743a..b44a3152346 100644
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -196,7 +196,6 @@ mwifiex_sdio_remove(struct sdio_func *func)
}
mwifiex_remove_card(card->adapter, &add_remove_card_sem);
- kfree(card);
}
/*
@@ -1745,7 +1744,6 @@ mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
sdio_claim_host(card->func);
sdio_disable_func(card->func);
sdio_release_host(card->func);
- sdio_set_drvdata(card->func, NULL);
}
}
@@ -1773,7 +1771,6 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
return ret;
}
- sdio_set_drvdata(func, card);
adapter->dev = &func->dev;
@@ -1801,6 +1798,8 @@ static int mwifiex_init_sdio(struct mwifiex_adapter *adapter)
int ret;
u8 sdio_ireg;
+ sdio_set_drvdata(card->func, card);
+
/*
* Read the HOST_INT_STATUS_REG for ACK the first interrupt got
* from the bootloader. If we don't do this we get a interrupt
@@ -1883,6 +1882,8 @@ static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter)
kfree(card->mpa_rx.len_arr);
kfree(card->mpa_tx.buf);
kfree(card->mpa_rx.buf);
+ sdio_set_drvdata(card->func, NULL);
+ kfree(card);
}
/*