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authorHelge Deller <deller@gmx.de>2017-07-25 19:20:54 +0300
committerHelge Deller <deller@gmx.de>2017-07-25 19:24:39 +0300
commitf520e55241e1cf0c10d308ccf47513f28533f60a (patch)
treefa785945c28ff2e0d3c777d2f4a59fdf92756716 /scripts/pnmtologo.c
parent108ea18722df59d8977951eecd635d296fa64765 (diff)
downloadlinux-f520e55241e1cf0c10d308ccf47513f28533f60a.tar.xz
parisc: Fix crash when calling PDC_PAT_MEM PDT firmware function
Commit c9c2877d08d9 ("parisc: Add Page Deallocation Table (PDT) support") introduced the pdc_pat_mem_read_pd_pdt() firmware helper function, which crashed the system because it trashed the stack if the pdc_pat_mem_read_pd_retinfo struct was located on the stack (and which is in size less than the required 32 64-bit values). Fix it by using the pdc_result struct instead when calling firmware and copy the return values back into the result struct when finished sucessfully. While debugging this code I noticed that the pdc_type wasn't set correctly either, so let's fix that too. Fixes: c9c2877d08d9 ("parisc: Add Page Deallocation Table (PDT) support") Signed-off-by: Helge Deller <deller@gmx.de>
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