Re: [PATCH v2] EDAC/altera: Fix device node reference leaks in the SDMMC ECC setup

From: Dinh Nguyen

Date: Mon Jul 20 2026 - 10:40:59 EST




On 7/17/26 08:17, Rounak Das wrote:
Under altr_portb_setup() and socfpga_init_sdmmc_ecc(),
of_find_compatible_node() was being used to look up the sdmmc-ecc
node. This node wasn't being dropped using of_node_put().

altr_portb_setup() did not drop its reference under its success path
or on any error path.

socfpga_init_sdmmc_ecc() did an early return thereby skipping the
common exit label and thus leaking the reference.

Add the missing of_node_put() calls in altr_portb_setup(), and route
socfpga_init_sdmmc_ecc()'s success path through the common exit label.

Fixes: 911049845d70 ("EDAC, altera: Add Arria10 SD-MMC EDAC support")
Fixes: 788586efd116 ("EDAC/altera: Initialize peripheral FIFOs in probe()")
Cc: stable@xxxxxxxxxxxxxxx
Closes: https://sashiko.dev/#/patchset/20260708091135.94114-1-rounakdas2025%40gmail.com
Signed-off-by: Rounak Das <rounakdas2025@xxxxxxxxx>
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Acked-by: Dinh Nguyen <dinguyen@xxxxxxxxxx>