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Commit b6465ddd authored by Sathish Ambley's avatar Sathish Ambley
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msm: ADSPRPC: Skip file mapping for static shell 



Do not map buffer if the file length is passed as
zero from user space for static shell linking use cases.

Change-Id: I992f22e12e88d2f019dfb646987ec7eaeb5ab40c
Acked-by: default avatarHimateja Reddy <hmreddy@qti.qualcomm.com>
Signed-off-by: default avatarSathish Ambley <sathishambley@codeaurora.org>
parent fcbbe260

drivers/char/adsprpc.c

+6 −4
Original line number Diff line number Diff line
@@ -1381,10 +1381,12 @@ static int fastrpc_init_process(struct fastrpc_file *fl, 
		inbuf.pgid = current->tgid;

		inbuf.namelen = strlen(current->comm) + 1;

		inbuf.filelen = init->filelen;

		VERIFY(err, !fastrpc_mmap_create(fl, init->filefd, init->file,

					init->filelen, mflags, &file));

		if (init->filelen) {

			VERIFY(err, !fastrpc_mmap_create(fl, init->filefd,

				init->file, init->filelen, mflags, &file));

			if (err)

				goto bail;

		}

		inbuf.pageslen = 1;

		VERIFY(err, !fastrpc_mmap_create(fl, init->memfd, init->mem,

					init->memlen, mflags, &mem));