Merge patch series "scsi: ufs: Harden TX EQTR error handling paths"

Can Guo <can.guo@oss.qualcomm.com> says:

TX Equalization training currently has a few error-path gaps that can
make the flow brittle and can leave variant/device cleanup incomplete.

This series hardens TX EQTR in three places:

 1. ufs-qcom: route SW FOM setup failures through the shared cleanup
    path so temporary device TX EQ settings are restored and link
    recovery is always attempted before exit.

 2. core: treat RX_FOM DME read failures as best effort so TX EQTR can
    continue, and force failed lanes to deterministic 0 FOM.

 3. core: always run tx_eqtr POST_CHANGE notify once PRE_CHANGE
    succeeds, even when TX EQTR fails, so variant cleanup is not
    skipped.

Together these changes improve TX EQTR robustness without changing the
normal success path.

Link: https://patch.msgid.link/20260625121306.1655467-1-can.guo@oss.qualcomm.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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