mmc: sdhci: fix align_buffer memory leak on re-initialization

sdhci_init() allocates a 512KB aligned bounce buffer for controllers
with SDHCI_QUIRK_32BIT_DMA_ADDR. In the non-DM code path, sdhci_init()
is registered as ops->init and called on every mmc_init(). Each call
allocates a new buffer without checking or freeing the previous one,
leaking 512KB per re-initialization.

Fix by guarding the allocation with !host->align_buffer so it only
allocates on the first call.

Reviewed-by: Tanmay Kathpalia <[email protected]>
Signed-off-by: Tanmay Kathpalia <[email protected]>
Signed-off-by: Peng Fan <[email protected]>

0 files changed, 0 insertions, 0 deletions