Initialise scatter/gather list in sg driver
After turning on DEBUG_SG I hit a fail: kernel BUG at include/linux/scatterlist.h:50! sg_build_indirect sg_build_reserve sg_open chrdev_open __dentry_open do_filp_open do_sys_open We should initialise the sg list when we allocate it in sg_build_sgat. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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@ -1652,6 +1652,7 @@ sg_build_sgat(Sg_scatter_hold * schp, const Sg_fd * sfp, int tablesize)
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schp->buffer = kzalloc(sg_bufflen, gfp_flags);
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if (!schp->buffer)
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return -ENOMEM;
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sg_init_table(schp->buffer, tablesize);
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schp->sglist_len = sg_bufflen;
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return tablesize; /* number of scat_gath elements allocated */
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}
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