Commit af2debd5 authored Jun 09, 2022 by Alexander Gordeev

s390/crash: make copy_oldmem_page() return number of bytes copied



Callback copy_oldmem_page() returns either error code or zero.
Instead, it should return the error code or number of bytes copied.

Fixes: df9694c7 ("s390/dump: streamline oldmem copy functions")
Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Tested-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

parent cc02e6e2

arch/s390/kernel/crash_dump.c

+4 −3

Original line number	Diff line number	Diff line
		@@ -233,9 +233,10 @@ ssize_t copy_oldmem_page(struct iov_iter *iter, unsigned long pfn, size_t csize,
		rc = copy_oldmem_user(iter->iov->iov_base, src, csize);
		else
		rc = copy_oldmem_kernel(iter->kvec->iov_base, src, csize);
		if (!rc)
		iov_iter_advance(iter, csize);
		if (rc < 0)
		return rc;
		iov_iter_advance(iter, csize);
		return csize;
		}

		/*