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scsi: zfcp: Use list_first_entry_or_null() in zfcp_erp_thread()
Use the right helper to avoid poking around in the list's internals. Link: https://lore.kernel.org/r/ed669555c73aab95b29444c10066f492c0c43391.1599765652.git.bblock@linux.ibm.com Reviewed-by: Steffen Maier <[email protected]> Reviewed-by: Benjamin Block <[email protected]> Signed-off-by: Julian Wiedmann <[email protected]> Signed-off-by: Benjamin Block <[email protected]> Signed-off-by: Martin K. Petersen <[email protected]>
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