tfontsrv: fix some memory leaks - plan9port - [fork] Plan 9 from user space
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       ---
 (DIR) commit a3ec102dc7fee3d4ecb32ade5ec9d7de4b9b4304
 (DIR) parent b2f67698309b0c573cd52e357be126171be0a93a
 (HTM) Author: Xiao-Yong Jin <xjin@anl.gov>
       Date:   Tue, 20 Mar 2018 22:17:05 -0500
       
       fontsrv: fix some memory leaks
       
       Diffstat:
         M src/cmd/fontsrv/osx.c               |       4 +++-
         M src/cmd/fontsrv/x11.c               |       1 +
       
       2 files changed, 4 insertions(+), 1 deletion(-)
       ---
 (DIR) diff --git a/src/cmd/fontsrv/osx.c b/src/cmd/fontsrv/osx.c
       t@@ -245,8 +245,10 @@ mksubfont(XFont *f, char *name, int lo, int hi, int size, int antialias)
                if(m == nil)
                        return nil;
                mc = allocmemimage(Rect(0, 0, x+1, y+1), GREY8);
       -        if(mc == nil)
       +        if(mc == nil){
       +                freememimage(m);
                        return nil;
       +        }
                memfillcolor(m, DBlack);
                memfillcolor(mc, DBlack);
                fc = malloc((hi+2 - lo) * sizeof fc[0]);
 (DIR) diff --git a/src/cmd/fontsrv/x11.c b/src/cmd/fontsrv/x11.c
       t@@ -236,6 +236,7 @@ mksubfont(XFont *xf, char *name, int lo, int hi, int size, int antialias)
                m1 = allocmemimage(Rect(0, 0, x, y), antialias ? GREY8 : GREY1);
                memimagedraw(m1, m1->r, m, m->r.min, memopaque, ZP, S);
                freememimage(m);
       +        freememimage(mc);
        
                sf->name = nil;
                sf->n = hi+1 - lo;