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mmc: sdio: Fix potential NULL pointer error in mmc_sdio_init_card()
During some scenarios mmc_sdio_init_card() runs a retry path for the UHS-I
specific initialization, which leads to removal of the previously allocated
card. A new card is then re-allocated while retrying.
However, in one of the corresponding error paths we may end up to remove an
already removed card, which likely leads to a NULL pointer exception. So,
let's fix this.
Fixes: 5fc3d80ef4
("mmc: sdio: don't use rocr to check if the card could support UHS mode")
Cc: <stable@vger.kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20200430091640.455-2-ulf.hansson@linaro.org
This commit is contained in:
parent
c2b613d03b
commit
f04086c225
1 changed files with 1 additions and 2 deletions
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@ -718,9 +718,8 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
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/* Retry init sequence, but without R4_18V_PRESENT. */
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retries = 0;
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goto try_again;
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} else {
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goto remove;
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}
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return err;
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}
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/*
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